The only source of new alleles in species – mitosis

The only source of new alleles in species – mitosis

Subject: Biology    / General Biology
Question

The only source of new alleles in species is _________________.

Question 1 options:

mitosis

mutation

speciation

genetic drift

sexual reproduction
SaveQuestion 2 (5 points)

_____________ is the primary pressure on species to change over time.

Question 2 options:

Natural selection

Mutation

Adaptation
SaveQuestion 3 (5 points)

The wing of a bird and the arm of a human are examples of ________ structures.

Question 3 options:

vestigial

molecular

homologous

analogous

Question 4 (5 points)

Allopatric speciation is to geography as _________________ speciation is to genetic change.

Question 4 options:

parapatric

sympatric

peripatric

de novo
SaveQuestion 5 (5 points)

Which of the following are homologous structures?

Question 5 options:

The forelimb of a dog and the hindlimb of a cat

The mouth of a mosquito and the beak of a hummingbird

Wings of a butterfly and wings of a sparrow

The forelimb of a dog and the forelimb of a cat
SaveQuestion 6 (5 points)

What does natural selection result in?

Question 6 options:

Increased genetic variation

A population that is better adapted to a future environment

A population that is adapted to its current environment

An increase in the size of a population

Question 7 (5 points)

Homology is evidence of ______, while analogous structures are evidence of ______.

Question 7 options:

convergent evolution; common ancestry

punctuated evolution; divergent evolution

common ancestry; convergent evolution

paedomorphosis; stabilizing selection
SaveQuestion 8 (5 points)

Phylogeny is a description of ____________.

Question 8 options:

mutations

DNA

evolutionary history

organisms on Earth
SaveQuestion 9 (5 points)

Old world monkeys have prominent tails; apes and humans do not. See the diagram. At what labeled point did this evolutionary event (loss of the tail) occur?

Question 9 options:

Point 1

Point 2

Point 3

Question 10 (5 points)

Complete the following analogy: Microevolution is to population as macroevolution is to ______________.

Question 10 options:

genes

reproduction

individuals

speciation
SaveQuestion 11 (5 points)

A storm uproots 60% of the trees in a population. This is an example of __________________.

Question 11 options:

genetic drift

gene flow

mutation

macroevolution
SaveQuestion 12 (5 points)

What type of reproductive isolating mechanism occurs when female fireflies only mate with males who emit light in a particular pattern?

Question 12 options:

Habitat isolation

Temporal isolation

Mechanical isolation

Behavioral isolation

Question 13 (5 points)

After a disastrous blizzard, there was a significant increase in the allele frequency of blue eye color in Husky dogs. The frequency of alleles for brown-eyed dogs was 7.5% and the allele frequency for hazel-eyed dogs was 22.5% of all alleles for the population. What is the allele frequency percentage for the blue-eyed Husky dogs in this population?

Question 13 options:

7.5

22.5

30

70
SaveQuestion 14 (5 points)

A group of 20 people decide to leave Brazil and settle on a deserted island in the Caribbean. There they form a new population isolated from contact with other human beings. This is an example of ______________.

Question 14 options:

speciation

gene flow

genetic drift

mutation
SaveQuestion 15 (5 points)

Microevolution is to population as macroevolution is to __________.

Question 15 options:

individuals

communities

biodiversity

species

Question 16 (5 points)

The graph shows of the bacteria H. pylori evolved a resistance to antibiotics over a period of 20 years. Resistance evolved most for the antibiotic __________________.

Question 16 options:

Metronidazole

Amoxicillin

Clarithromycin

Tetracycline
SaveQuestion 17 (5 points)

What are the similarity of fish, frog, bird, and human embryos evidence of?

Question 17 options:

Analogy

Common ancestry

Genetic Drift

Genetic mutation
SaveQuestion 18 (5 points)

Mendel discovered that whether his peas were yellow or green is determined by a single gene in which yellow (Y) is dominant over green (y). Assuming low selective pressure, what does the Hardy-Weinberg Equilibrium frequency term 2pq represent in the peas?

Question 18 options:

heterozygous, Yy

homozygous recessive, yy

homozygous dominant, YY

Question 19 (5 points)

After a drought in 1977, the number of birds on Daphne Major Island decreased by ___________ times compared with the original population size.

Question 19 options:

8

2

12

20
SaveQuestion 20 (5 points)

This graphic as well as the p and q values shown in each part of the image exemplify one of four factors that can shift the allele frequency in a small population. Which factor from the list below best explains the changes over three generations in this rabbit population?

Question 20 options:

Natural selection

Mutation

Genetic drift

Migration (Gene flow)

Economics Assignment

Economics Assignment

Subject: Economics    / Accounting
Question

1) Which of the following economic institutions aids less developed countries by providing loans
for economic development?
United Nations Development Program
World Bank
International Monetary Fund
Federal Reserve Board
2) The International Monetary Fund assists countries by providing
money.
food and clothing.
advice and technical assistance.
portable housing.
3) Which of the following countries is NOT a developed nation?
United States
Canada
Australia
Mexico 4) Which of the following is NOT a characteristic of a developed country?
low life expectancy
high literacy rates
many educated people
low unemployment
5) What is it called when countries block the importation of certain products into their country?
importation blockade
trade barrier
trade inhibitor
domestic protection act
6) Which of the following is NOT a major import of the United States?
vehicles
clothing
power-generating machinery
airplane parts
7) Which of the following is NOT a major export of the United States?
agricultural products
scientific instruments
telecommunication equipment electrical machinery
8) What is it called when a country can produce an item at a lower opportunity cost?
absolute advantage
efficient advantage
comparative advantage
consistent advantage
9) Which exchange rate system has made international trade easier and allows for fluctuations
in currency values on a day-to-day basis?
fixed exchange rate system
variable exchange rate system
secure exchange rate system
flexible exchange rate system
10) Which of the following countries is NOT involved in the North American Free Trade
Agreement?
United States
Mexico
Nicaragua
Canada
11) One goal of the United Nations Development Program is to rid the world of poverty. True
False
12) The World Bank gets its funds through the sale of bonds in financial markets.
True
False
13) Countries are required to make donations to the World Bank.
True
False
14) In developed countries, a large percentage of the population is made up of subsistence
farmers.
True
False
15) Tariffs are taxes placed on imported goods.
True
False
16) Japan is a major trading partner of the United States.
True
False
17) Technology assistance is one U.S. export.
True
False
18) Countries trade primarily to foster diplomatic relations between each other.
True False
19) Fixed rate exchange systems are calculated according to supply and demand.
True
False
20) Countries that have a traditional economy often develop at a faster pace than free market
economy countries.
True
False
21) In an essay of at least two well-developed paragraphs, explain the global benefits of
international trade and multinational corporations.
22) In complete sentence format, explain (a) two of the three types of trade barriers, (b) the
reasons why countries sometimes establish trade barriers, and (c) the effects trade barriers
sometimes have on the economy.
23) In an essay of at least two well-developed paragraphs, analyze four of the factors that can
affect economic development in some countries.
24) In an essay of at least two well-developed paragraphs, explain why countries enter into free
trade agreements. Provide the names of three trade agreements and provide a brief description
of each. The Reciprocal Trade Agreement Act, North American Free Trade Agreement, and
The World Trade Organization.
25) In an essay of at least three well-developed paragraphs, (a) explain one economic difficulty
for people traveling and conducting business between countries, and (b) describe the two
exchange rate systems and how they function in alleviating these problems.

BOS 3651-Compose a safety policy statement for your current

BOS 3651-Compose a safety policy statement for your current

Subject: Business    / Management
Question

need help completing assignment due by midnight tonight.

2. Compose a safety policy statement for your current organization (or an organization for which you previously worked), following the guidelines in the course textbook. Be certain it is specific to the organization and not just a series of generic statements.

Your response must be at least 75 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

3.

Most organizations hire contractors in some capacity, either to aid in production work or to provide ancillary services, such as cleaning, maintenance, remodeling, and food service. Discuss how a contractor?s operations could adversely affect the health and safety of an organization?s employees. What procedures should be in place to prevent any adverse effects?

Your response must be at least 75 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.
4.

What types of management system issues are targeted in the planning process of Z10 section 4.0? Provide an example of each issue.

Your response must be at least 75 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

5.

Explain the differences between authority, responsibility, and accountability as they apply to OSH program management. In your discussion, provide examples of how your current organization (or a past one) implements these concepts. Is it effective? How can you tell? What recommendations do you have for improvement?

Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

6.A recent OSHA inspection in your machine shop identified several serious deficiencies in occupational noise control. Serious violations were issued citing 29 CFR 1910.95(i)(2) and 29 CFR 1910.95(k). Using the PDCA framework, develop a plan that will correct the deficiencies and ensure that the violations do not recur.

Your response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying citations.

Econ-E 200 Extra Credit Assignment

Econ-E 200 Extra Credit Assignment

Subject: Economics    / Accounting
Question

The purpose of this assignment is for you to give your opinion, supported with
facts, on a contested macroeconomic issue. You’ll be required to think critically to
develop your argument and provide a good foundation to build from. Citing
credible sources will further strengthen your side, however, don’t fill your paper
with other people’s words. I want to hear your ideas on how we ought to conduct
our economy and how we should go about it.
For this extra credit assignment do the following: Read Chapter 17 – Issues in Macroeconomic Theory and Policy Select a topic within the chapter that interests you. Suggestions:
o Problems with fiscal/monetary policy
o Rational expectations
o Controversies in Macroeconomic Policy
o The financial crisis ’08-‘09
o Any other sub-topic discussed Outline your paper and argument
o Introduction of topic
o Explanation of topic and current state
o You proposed plan for change
o Conclusion Write it, Read it, Tweak it, Submit it! Two mutually exclusive options for submission – Pick only one
o Option 1: (45 pts.) – Submit your completed paper under the
assignment “EC Paper”. I’ll read your paper and grade it accordingly,
earning you up to 45 points.
o Option 2: (45+ pts.) – Submit your completed paper under the
discussion “EC Discussion”. Your peers will read your paper and give
you their feedback on it. Since you’re posting your paper to the class
and replying to others’ posts, you can earn more than 45 points. FAQ’s: What font type/size, margins, single/double-spaced, and pages?
o There is a 2-3 page limit, with 3 pages required to earn full credit. Use a
font that is easily readable and a reasonable size. Standard margins and
double-spaced. It’s easy to spot abnormal fonts, spacing, and margins, so
don’t try to be too crafty trying to reach the page limit. The easiest way is
to write some more! Cover and Reference pages don’t count towards
page limit.
MLA Format
Three sources in total needed.
o One source will be the textbook, this will be easy for the explanation
portion. Select and use two outside sources to help support your opinion.
Make sure the sources are credible, not a rant on reddit. Remember,
don’t quote from your sources too much. Your words are the important
part. Don’t be afraid to say “I”!
How do I do this, let alone start it?
o Pick a topic that you feel confident that you could discuss in a debate. If
most topics seem outside your realm, then pick what’s most familiar. Pick
a side, for or against. Search for sources that say the same as you. Outline
your thoughts, then fill it in with details. Try to really analyze what you’re
saying, always making sure it’s a sound argument. If you happen to have
one idea going into it and change your mind after research, then talk
about this experience. Most of the paper should be the third part, your
argument. If you need more to reach the page limit, then go back to this
section and expound on your main points. Your goal is to persuade your
audience. Keeping them interested and entertained should also be
considered! ?
Can we get an example?
o Sure! Here’s a quick introduction snippet to give you an idea:
o Careless fiscal budget overruns are rampant in the U.S. and are spiraling
out of control. These foolish, futile attempts to boost the economy have
left businesses in the chokehold of high interest debt, due to being
crowded-out of the financial markets from State borrowing. I’ll be
discussing how Uncle Sam has wasted limited investment dollars, starving
businesses, for the sake of growth and how we can fix our missteps for
the future, focusing on long-term gains rather than short-term ones.

Discuss the regions New England, South, Midwest

Discuss the regions New England, South, Midwest

Subject: History    / General History
Question

Discuss the regions (New England, South, Midwest and West) covered in the text (chapters 10, 12, 13 and 14) and their various way of life during the 1800s. Use facts to support your views. Write about ALL four regions:

1. Explain what defined each region as far as its social structure, population, economic system and cultural outlook.

2. Argue to what extent each region was independent of the others by 1850?

3. Explain in which region of the country you would prefer to live in 1850, and why? Explain why you would not choose another place.

Remember to use your own words when you write. However, if you quote or paraphrase from the text, please cite the pages, for instance (259), in your essay. This essay must be roughly 1000 words. Make sure you include a brief introduction, the main body with paragraphs that argue both sides, and a conclusion where you give your view of the situation.

Your essay must be posted to the Exam 3 Dropbox by midnight of the due date to avoid losing points for being late.

POLI330 Week 5 Quiz Latest 2017 April

POLI330 Week 5 Quiz Latest 2017 April

Subject: Political Science    / General Political Science
Question

Question 1. Question :

(TCO 5) Which of the following terms is defined as the post-feudal concentration of power in a monarch?

Absolutism

Totalitarianism

Teetotalism

Monarchy

Question 2. Question :

(TCO 5) Countries with limits on government have usually had feudal pasts, which suggests what about the dispersion of power?

Equal distribution of power is the only effective political structure.

Power must be distributed by the working class.

Power should be concentrated among the lower classes.

Dispersion of power is good and concentration of power is bad.

Question 3. Question :

(TCO 5) How often does the cabinet change in a parliamentary system?

Every 4 years

Every 6 years

Every 8 years

When the cabinet is voted out or resigns

Question 4. Question :

(TCO 5) Because of the separation of powers inherent in a presidential system, some scholars think that executive-legislative _____ is common in systems like that used in the United States.

cooperation

stagnation

deadlock

insolvency

Question 5. Question :

(TCO 5) Describe how the election process in a parliamentary system slightly resembles presidential elections in the United States.

Party chiefs run as candidates for prime minister.

Citizens vote directly for the each new prime minister.

Citizens vote for a party member with the knowledge that the next prime minister will be the head of the largest party.

The prime minister is appointed for a 4-year term and can be reappointed one time.

Question 6. Question :

(TCO 5) The only political system that could guarantee the cooperation between the legislative and executive branches is _____.

a monarchy

a dictatorship

a democracy

an oligarchy

Question 7. Question :

(TCO 4) Which of the following issues is a civil concern?

Extortion

Theft

Divorce

Trafficking

Question 8. Question :

(TCO 4) What are the key mechanisms of international law?

Reciprocity and coalition

Consistency and reciprocity

Consistency and coherence

Coalition and coherence

Question 9. Question :

(TCO 4) Who nominates and approves federal judges in the U.S. court system?

The president and the Senate

The Senate and the House

The President and speaker of the House

The Senate and the secretary of state

Question 10. Question :

(TCO 4) Which of the following was an argument against granting the U.S. Supreme Court the power of judicial review?

Many feared that such a power would give the court a double check and compromise its neutrality.

Some thought that such power would create untrustworthy judges.

The founding fathers argued that judicial review would lead to undue indictments by the court.

Drafters of the Constitution feared that few laws would ever be set in stone.

MATH399 All Discussions Latest 2017 March

MATH399 All Discussions Latest 2017 March

Subject: Mathematics    / General Mathematics
Question
MATH399 Week 1 Discussion Latest 2017 March

Descriptive Statistics (graded)

If you were given a large data set (i.e., sales over the last year of our top 100 customers), what might you be able to do with these data? What might be the benefits of describing the data?

For additional videos, Excel templates, voice video on excel templates, How to work with ilabs please refer to this webpage

Math 399 – Supplemental class material (weblink)

Here are a few questions from Chapter 1 & 2 study plan that you can practice and also participate for discussion points. This will help you towards understanding the concepts and also prepare you toward the Week 3 Quiz. Please work on only one question at a time and give opportunities to your classmates to work on the questions. You can learn and lend a helping to your classmates, share technology help and links to understand, suggestions and tips..Remember homework alone is not sufficient to prepare toward quizzes. Therefore it is important that you practice in the study plan . Answers will be posted on Saturday evening.

1. Determine whether the given value is a statistic or a parameter.

A sample of students is selected and it is found that 35% own a computer

Study plan 1.1.41

2. Determine whether the underlined numerical value is a parameter or statistic. Explain your reasoning.

A certain zoo found that 8% of its 843 animals were nocturnal

Study Plan: 1.1.37

3. Suppose a survey of 568 women in the United States found that more than 56% are the primary investor in their household. Which part of the survey represents the descriptive statistics? Make an inference based on the results of the survey.

4. How is a sample related to a population?

5. Determine whether the variable is qualitative or quantitative

a. Goals scored in a hockey game

b. Favorite musical instrument

Study plan 1.2.7

6. What is an inherent Zero? Describe an example that has an inherent zero.

Study plan 1.2.31

7. Which method of data collection should be used to collect data for the following study.

A study of the health of 164 kidney transplant patients at a hospital.

Study plan 1.3.11

8. Use the given minimum and maximum data entries, and the number of classes, to find the class width, the lower class limits and the upper class limits.

Minimum = 13, maximum = 84, 6 classes

Study plan 2.1.11

9. Some graph questions to study: Study Plan 2.1.19, 2.1.26, 2.1.27

10. Students in an experimental psychology class did research on depression as sign of stress. A test was administered to a sample of 30 students. The scores are shown below.

43 50 10 90 77 35 64 36 42 72

54 62 35 75 50 72 36 29 39 61

48 63 35 41 21 36 50 46 86 14

a. Find the 10% trimmed mean of the data.

b. Find Mean

c. Find Median

D. Find Mode

E. Midrange

Please use the paste to clipboard from the data set to work in excel or in minitab

Study plan 2.3.65

11. Find the range, mean, variance and standard deviation of the sample data set.

7 10 17 15 5 11 16 6 13

Study plan 2.4.13

MATH399 Week 2 Discussion Latest 2017 March
Regression (graded)

Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information that you have. Your boss has asked you to put together a report showing the relationship between these two variables. What could you present and why?

________________________________________________________________________________________________
For additional videos, Excel templates, voice video on excel templates, How to work with ilabs please refer to this webpage

________________________________________________________________________________

Here are a few questions that you can participate for discussion points from your study plan on correlation and regression. This may help you toward understanding concepts and also in the quiz for Week 3. Please work on only one question at a time. Answers will be posted on Saturday morning. Please download the file that has data.

I have attached Excel worksheet under “excel forum”. Delete the data from the cells and enter your data for graphing scatter plot, finding correlation and regression equation.

1. Construct a scatter plot and determine the type of correlation using r for the following data

The ages(in years) of 6 children and the number of words in their vocabulary

Age, x

1

2

3

4

5

6

Vocabulary size,y

250

950

1200

1450

1800

2650

a) Display the data in a scatter plot

b) Calculate the correlation coefficient r

c) Make a conclusion about the type of correlation

Study plan 9.1.22, 9.1.24

2. Suppose the scatter plot shows the results of a survey of 42 randomly selected males ages 24 to 35. Using age as the explanatory variable, choose the appropriate description for the graph, Explain your reasoning.

a) Age and body temperature

b) Age and balance on student loans

c) Age and income

d) Age and height

PLEASE SEE THE DOCUMENT ATTACHED FOR THIS GRAPH

The response variable is ____________ because you would expect this variable and age to have _________________ and ____________variation for adult males.

Study plan 9.2.17

3. Identify the explanatory and the response variable.

A farmer wants to determine if the temperature received by similar crops can be used to predict the harvest of the crop.

The explanatory variable is _________

The response variable is ____________

4. Find the equation of the regression line for the given data. The construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below.

Hours spent studying,x

Test score, y

0

41

2

42

3

49

4

47

4

64

5

67

a. Find the regression equation.

b. Scatter plot

c. Predict the value of y for x= 2

d. Predict the value of y for x=3.5

e. Predict the value of y for x= 12

MATH399 Week 3 Discussion Latest 2017 March

Probability and Odds (graded)

The odds of winning a game are given as 1:25. What is the probability that you will win this game? What is the probability that you will lose this game? In your follow-up replies, consider which number in the odds ratio needs to change and how it needs to change in order to increase the probability of winning. (Note: See page 145 in the text for a discussion on odds.)

_________________________________________________________________________________________

For additional videos, Excel templates, voice video on excel templates, How to work with ilabs please refer to this webpage

CLICK HERE FOR ALL EXCEL WORKSHEETS AND YOUTUBE LINKS

_________________________________________________________________________________________-

PLEASE COMPLETE THE QUIZ THIS WEEK that covers WEEK 1 and WEEK 2 that covers Week 1 and Week 2 material only.

Here are a few questions that you can participate for discussion points from your study plan on correlation and regression that may help you toward understanding concepts and the quiz for Week 5. Please work on only one question at a time. Answers are posted at the end of the questions.

PROBABILITY DISTRIBUTIONS

Objective – CONCEPTS:

1. Determine which of the following numbers could not represent the probability of an event

0, 0.008, -0.6, 65%, 715/1206, 60/47

Study plan: 3.1.1, 3.1.2, 3.1.7, 3.1.8

Objective-Sample Space

2. Identify the sample space of the probability experiment and determine the number of outcomes in the sample space.

Determining a person’s grade Freshman (F), Sophomore (So), Junior (J), Senior (Se) and gender (male(M) Female (F))

Study Plan: 3.1.15, 3.1.17, 3.1.19

Objective-Simple Events

3. Determine the number of outcomes in the event. Decide whether the event is a simple event or not.

You randomly select one card from a standard deck. Event A is selecting a red four.

Study Plan: 3.1.21, 3.1.23

Objective-Frequency Distribution

4. Use the frequency distribution below, which shows the number of voters (in millions) according to age, to find the probability that a voter chosen at random is in the given age range.

Not between 25 and 34 years old

Ages of voters

Frequency

18 to 20

7.4

21 to 24

11.5

25 to 34

21.8

35 to 44

25.5

45 to 64

56.8

65 and over

28.7

Study Plan: 3.1.55, 3.1.57, 3.1.59, 3.1.61, 3.1.63

Objective-Distinguish between independent and dependent events

5. Researchers found that people with depression are four times more likely to have a breathing-related sleep disorder that people who are not depressed. Identify the two events described in the study. Do the results indicate that the events are independent or dependent?

Study Plan: 3.2.7, 3.2.11, 3.2.13, 3.2.15

Objective-Conditional Probability

6. In the general population, one woman in eight will develop breast cancer. Research has shown that 1 woman in 600 carries a mutation of the BRCA gene. Seven out of 10 women with this mutation develop breast cancer.

a. Find the probability that a randomly selected woman will develop breast cancer given that she has a mutation of the BRCA gene.

b. Find the probability that a randomly selected woman will carry the mutation of the BRCA gene and will develop breast cancer.

c. Are the events of carrying this mutation and developing breast cancer independent or dependent events.

Study Plan: 3.2.17, 3.2.27

Objective-Multiplication Rule to Find Probabilities

7. A study found that 38% of the assisted reproductive technology (ART) cycles resulted in pregnancies. Twenty-two percent of the ART pregnancies resulted in multiple births.

a. Find the probability that a randomly selected ART cycle resulted in a pregnancy and produced a multiple birth.

b. Find the probability that a randomly selected ART cycle that resulted in a pregnancy did not produce a multiple birth.

c. Would it be unusual for a randomly selected ART cycle to result in a pregnancy and produce a multiple birth? Explain

Study Plan: 3.2.21, 3.2.23, 3.2.26

Objective-Mutually exclusive

8. Decide if the events are mutually exclusive.

Event A: Randomly selecting someone treated with a certain medication.

Event B: Randomly selecting someone who received no medication

Study Plan: 3.3.7, 3.3.9, 3.3.11

Objective-Addition Rule

9. During a 52-Week period, a company paid overtime wages for 16 Weeks and hired temporary help for 8 Weeks. During 4 Weeks, the company paid overtime and hired temporary help.

a. Are the events “Selecting a Week that contained overtime wages” and “selecting a Week that contained temporary help wages” mutually exclusive

b. If an auditor randomly examined the payroll records for only one Week, what is the probability that the payroll for that Week contained Overtime wages or temporary help wages?

Study Plan: 3.3.13, 3.3.15, 3.3.17,3.3.25
MATH399 Week 4 Discussion Latest 2017 March

Discrete Probability Variables (graded)

Provide an example that follows either the binomial or Poisson distribution, and explain why that example follows that particular distribution. In your responses to other students, make up numbers for the example provided by that other student, and ask a related probability question. Then, show the work (or describe the technology steps), and solve that probability example.

________________________________________________________________________________

For selected homework questions, additional videos, Excel templates, voice video on excel templates, How to work with ilabs please refer to this webpage

CLICK HERE FOR ALL EXCEL WORKSHEETS AND YOUTUBE LINKS

________________________________________________________________________________

OFFICE HOUR recording Link – we discussed how to use excel templates to do week 4 lab and hwk.

https://dvg.webex.com/dvg/lsr.php?RCID=38ea17328cd90f55e9c01d2d735b1146

Here are a few questions that you can participate for discussion points from your study plan on discrete probabilities that may help you toward understanding concepts and the quiz for Week 5. Please work on only one question at a time. Look for the Answers posted on Saturday Evening.

Definitely use the excel worksheet

OBJECTIVE: IS THE EXPERIMENT A BINOMIAL EXPERIMENT?

1. About 40% of babies born with a certain ailment recover fully. A hospital is caring for seven babies with this ailment. The random variable represents the number of babies that recover fully. Decide whether the experiment is a binomial experiment? If it is, identify a success, specify the values of n, p, and q, and list the possible values of the random variable x.

STUDY PLAN: 4.2.9, 4.2.11

OBJECTIVE: Find the MEAN, VARIANCE AND STANDARD DEVIATION OF THE binomial distribution

2. Find the mean, variance and standard deviation of the binomial distribution n= 123, p= 0.69

STUDY PLAN: 4.2.15

OBJECTIVE: FIND BINOMIAL PROBABILITIES USING TECHNOLOGY

3. 47% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball fan. Find the probability that the number who consider themselves baseball fans is

a. Exactly eight

b. At least eight

c. Less than eight

STUDY PLAN: 4.2.19, 4.2.21, 4.2.23, 4.2.25

OBJECTIVE: FIND PROBABILITIES FOR POISSON DISTRIBUTION USING technology

4. Given that x has a Poisson distribution with mean mu= 4, what is the probability that x= 6?

STUDY PLAN: 4.3.5

MATH399 Week 5 Discussion Latest 2017 March

Interpreting Normal Distributions (graded)

Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?

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For homework questions, additional videos, Excel templates, voice video on excel templates, How to work with ilabs please refer to this webpage

CLICK HERE FOR ALL EXCEL WORKSHEETS AND YOUTUBE LINKS

Recorded office hour link toward quiz for week #5.

https://dvg.webex.com/dvg/lsr.php?RCID=f167284e6723643995d35d9aac2b1972

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Here are a few questions that you can participate for discussion points from your study plan on normal distribution that may help you toward understanding concepts and the quiz for Week 7. Please work on only one question at a time. Answers are posted at the end.

OBJECTIVE: CONCEPTS

1. What requirements are necessary for a normal probability distribution to be a standard normal distribution?

STUDY PLAN: 5.1.2, 5.1.3, 5.1.7

OBJECTIVE: COMPUTE AND INTERPRET Z-SCORES of NORMAL DISTRIBUTIONS

2. The systolic blood pressures of a sample of adults are normally distributed, with a mean pressure of 115 millimeters of mercury and a standard deviation of 3.6 millimeters of mercury. The systolic blood pressures of four adults selected at random are 122, 113, 106 and 128 millimeters of mercury. The graph of the standard normal distributions is shown below. Complete a) and b) PLEASE SEE ATTACHED DOCUMENT FOR GRAPHS

a. Without converting to z scores, match the values with the letters A, B, C, and D on the given graph of the standard normal distribution.

b. Find the z-score that corresponds to each value and check your answers to part (a) (Round to two decimals as needed)

STUDY PLAN: 5.1.41, 5.1.43

OBJECTIVE: FIND PROBABILITIES USING THE STANDARD NORMAL DISTRIBUTION

3. For the standard normal distribution shown below, find the probability of z occurring in the indicated on the graph. Please see attached document

STUDY PLAN: 5.1.45, 5.1.47, 5.1.55, 5.1.57

OBJECTIVE: FIND PROBABILITIES FOR NORMALLY DISTRIBUTED VARIABLES

4. Assume the random variable x is normally distributed with mean mu= 50 and

standard deviation sigma= 7. Find P(x > 42)

STUDY PLAN: 5.2.1, 5.2.3, 5.2.5, 5.2.7, 5.2.9, 5.2.11, 5.2.15

OBJECTIVE: APPLICATIONS OF NORMAL DISTRIBUTION

5. Use the normal distribution of SAT writing scores with mean = 493 and standard deviation = 111.

a. What percentage of SAT writing scores are less than 600?

b. If 1000 SAT writing scores are randomly selected, about how many would you expect to be greater than 550?

STUDY PLAN: 5.2.21, 5.2.23, 5.2.25, 5.2.27

OBJECTIVE: FIND A Z SCORE GIVEN THE AREA UNDER THE NORMAL CURVE

6. Find the z score that corresponds to the cumulative area of 0.049

STUDY PLAN: 5.3.1, 5.3.3, 5.3.5, 5.3.7, 5.3.17, 5.3.19, 5.3.21, 5.3.23, 5.3.25, 5.3.27, 5.3.29

OBJECTIVE: APPLICATION OF NORMAL DISTRIBUTION

7. In a survey of women in a certain country (ages 20- 29), the mean height was 65.3 inches with a standard deviation of 2.67 inches.

a. What height represents the 98th percentile?

b. What height represents the first quartile?

STUDY PLAN: 5.3.31, 5.3.33, 5.3.35, 5.3.38, 5.3.39, 5.3.41

OBJECTIVE: Interpret sampling distributions

8. A population has a mean mu= 86 and a standard deviation sigma =20. Find the mean and standard deviation of a sampling distribution of sample means with a sample size n= 268

STUDY PLAN: 5.4.1, 5.4.3

OBJECTIVE: CENTRAL LIMIT THEOREM

9. Use the central limit theorem to find the mean and standard error of the mean of the sampling distribution.

The mean price of photo printers on a website is $221 with a standard deviation of $69. Random samples of size 34 are drawn from the population and the mean of each sample is determined. (ROUND ANSWERS TO THREE DECIMALS)

10. The population mean annual salary for environmental compliance specialists is about $61,500. A random sample of 34 specialists is drawn from this population. What is the probability that the mean salary is less than $59,000? Assume standard deviation sigma= $5800?

MATH399 Week 6 Discussion Latest 2017 March

Confidence Interval Concepts (graded)

Consider the formula used for any confidence interval and the elements included in that formula. What happens to the confidence interval if you

increase the confidence level,

increase the sample size, or

increase the margin of error? Only consider one of these changes at a time. Explain your answer with words and by referencing the formula.

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For few homework questions, additional videos, Excel templates, voice video on excel templates, How to work with ilabs please refer to this webpage

CLICK HERE FOR ALL EXCEL WORKSHEETS AND YOUTUBE LINKS

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PLEASE USE THE Z SCORE FOR THE GIVEN CONFIDENCE LEVEL if you are working the problems by hand.

Here are a few questions that you can participate for discussion points from your study plan on normal distribution. This may help you toward understanding concepts and the quiz for Week 7.

Please see attached excel worksheet for calculations if you are interested.

OBJECTIVE: FIND THE MARGIN OF ERROR

1. Find the margin of error for the given values of c = 0.95 , s= 3.6 and n= 36

(Round to three decimal places as needed)

STUDY PLAN: 6.1.13, 6.1.15

OBJECTIVE: CONSTRUCT AND INTERPRET CONFIDENCE INTERVALS FOR THE POPULATION MEAN

2. You are given the sample mean and the sample standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Which interval is wider? If convenient, use technology to construct the confidence intervals.

A random sample of 37 gas grills has a mean price of $637.70 and a standard deviation of $58.30

(Round to one decimal place as needed)

STUDY PLAN: 6.1.35, 6.1.36, 6.1.37, 6.1.40

OBJECTIVE: DETERMINE THE MINIMUM SAMPLE SIZE

3. A doctor wants to estimate the HDL cholesterol of all 20- to 29- year-old females. How many subjects are needed to estimate the HDL cholesterol within 4 points with 99% confidence assuming standard deviation sigma = 19.4? Suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the sample size required?

(Round to the next whole number)

STUDY PLAN: 6.1.53, 6.1.56

4. A 2011 Gallup Poll found that 76% of Americans believe that high achieving high school students should be recruited to become teachers. This poll was based on a random sample of 1002 Americans.

a. Find a 95% confidence interval for the proportion of Americans who would agree to this.

b. Interpret your result in the context of the given study.

c. Do these data refute a pundit’s claim that 2/3 of Americans believe this statement? Explain.

Taken from Stats Data & Models. De Veaux velleman Bock 4th edition

OBJECTIVE: DETERMINE THE MINIMUM SAMPLE SIZE

5. A researcher wishes to estimate, with 95% confidence, the proportion of adults who have high-speed Internet access. Her estimate must be accurate within 2% of the true proportion.

a. Find the minimum sample size needed, using a prior study that found that 52% of the respondents said they have high-speed Internet access.

(Round to the nearest whole number as needed)

b. What is the minimum sample size needed assuming that no preliminary estimate is available?

STUDY PLAN: 6.3.17, 6.3.18

MATH399 Week 7 Discussion Latest 2017 March

Rejection Region (graded)

How is the rejection region defined, and how is that related to the p value? When do you reject or fail to reject the null hypothesis? Why do you think statisticians are asked to complete hypothesis testing? Can you think of examples in courts, in medicine, or in your area?

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For a few hwk questions. additional videos, Excel templates, voice video on excel templates, How to work with ilabs please refer to this webpage

CLICK HERE FOR ALL EXCEL WORKSHEETS AND YOUTUBE LINKS

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PLEASE PARTICIPATE IN THE BELOW QUESTIONS. Do take the quiz in Week 7 that covers only on Week 5 & Week 6 early on in the week.

OBJECTIVE: WRITE THE NULL AND ALTERNATIVE HYPOTHESES. IDENTIFY WHICH IS THE CLAIM

1. A study claims that the mean survival time for certain cancer patients treated immediately with chemotherapy and radiation is 16 months.

STUDY PLAN: 7.1.29, 7.1.30

OBJECTIVE: TEST A CLAIM ABOUT A MEAN USING CRITICAL VALUES

2. A company that makes colas drinks states that the mean caffeine content per 12-ounce bottle of cola is 45 milligrams. You want to test this claim. During your tests, you find that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 43.3 milligrams with a standard deviation of 6.8 milligrams. At alpha = 0.05, can you reject the company’s claim?

STUDY PLAN: 7.2.35, 7.2.37

OBJECTIVE: TEST THE CLAIM FOR PROPORTIONS USING REJECTION REGION

3. A humane society claims that less than 35% of U.S households owns a dog. In a random sample of 409 U.S households, 154 say they own a dog. At alpha =0.10, is there enough evidence to support the society’s claim?

STUDY PLAN: 7.4.15, 7.4.17

Frank Harold is a sole proprietor running an advertising

Frank Harold is a sole proprietor running an advertising

Subject: Business    / Accounting
Question

5.(TCO G) Frank Harold is a sole proprietor running an advertising agency with two employees, Helen and Carolyn. Frank decides to relocate his business from New Wilmington to Ellwood City, and Helen and Carolyn agree to relocate as well. All three decide to move their families to Ellwood City. Frank agreed to reimburse Helen and Carolyn for their moving expenses.

(a) Carolynâs old residence was 13 miles from the old job location, and the new job location is 71 miles from her old residence. Once in Ellwood City, Carolyn works full-time for the next 2 years. What are the federal income tax consequences for Carolyn and Frank regarding the reimbursement of Carolyn’s moving expenses?

(b) Helen’s old residence was 8 miles from the old job location, and the new job location is 60 miles from her old residence. Once in Ellwood City, Helen works full-time for the first 52 weeks, but she works only part-time after that. What are the federal income tax consequences for Helen and Frank regarding the reimbursement of Helen’s moving expenses?

(c) Frank’s old residence was 10 miles from the old job location, and the new job location is 75 miles from his old residence. Once in Ellwood City, Frank works full-time for the next 52 weeks; however, he only works full-time 20 of the following 52 weeks. What are the federal income tax consequences to Frank regarding his qualified moving expenses? (Points : 20)

PROJECT 1-Define risk response planning and describe the key input

PROJECT 1-Define risk response planning and describe the key input

Subject: Business    / Management
Question

Please cite the sources within the paper. Paper must be in detail and 3-4 pages long. Please use creditable sources as well. Paper must flow well! Please take your time on it. Depending on the paper quality and nice tip will be awarded!

Perform Internet research on risk response. Find and review three sources from the search results. These three sources, along with the assignment readings (DoD, Kerzner, PMBOK, and Pritchard), should be used to answer the following questions:

Define risk response planning and describe the key input(s) and output(s).
What tools and techniques are recommended for planning responses to risks?
Define a risk trigger and describe it’s importance.
What is the difference between a contingency plan and a fallback plan?
Discuss how the cost, time, urgency, residual, and secondary risks can affect the decision on how to respond to risk.

Please make sure to include the items below in the paper!!

Thoughtful responses that compare/contrast/assess different authors’ perspectives.
Your insights as well as examples from your personal/work experiences that demonstrate your ability to apply what you are learning.
Citations documenting the assigned readings that were used to answer the questions.
All references listed correctly at the end of the paper and cited properly in the paper.

Employers often use employment tests to screen

Employers often use employment tests to screen

Subject: General Questions    / General General Questions
Question

Employers often use employment tests to screen applicants and to assist in selecting the most qualified individual for the job. They can be very effective tools. There are many different types of tests, including cognitive tests, credit checks, criminal background checks, and medical examinations. However, it is important to understand the legalities of these employment tests. Their use can violate antidiscrimination laws if an employer uses them to discriminate based on race, color, sex, national origin, religion, disability, or age (40 or older). Unless the employer can justify the test or procedure under the law, the use of these tests can also violate antidiscrimination laws if they disproportionately exclude people in a particular protected group.

In this scenario, the garden center management has no experience with screening exams, though some screening exams are necessary; for example, stockers must be able to occasionally lift 50 pounds. Therefore, you must justify the job-relatedness of screening exams, decide if they are really a bona fide occupational qualification (BFOQ), and explain your determination to management.

For this assignment, which is based on the legalities of screening exams, prepare a recommendations report, directed to management, about the employment screening exams used in the hiring process at the garden center. Address the following topics in your recommendation:

Compare the different employment screening exams required for job-relatedness and business necessity.
Analyze the legalities of the employment screening exams used during the hiring process.
Rationalize to management that employment screening exams are sufficiently job related.
Formulate the organization’s strategies for managing and recovering from liabilities.