Category: Uncategorized

STATISTICAL ANALYSIS FOR MANAGERS

STATISTICAL ANALYSIS FOR MANAGERS
only 16 questions

1. For some positive value of Z, the probability that a standard normal variable is between 0 and Z is 0.3770. The value of Z is:

a. 0.18

b. 0.81

c. 1.16

d. 1.47

-2-

2. If we know that the length of time it takes a college student to find a parking spot on central campus follows a normal distribution with a mean of 3.5 minutes and a standard deviation of 1 minute, find the probability that a randomly selected college student will find a parking spot in less than 3 minutes.

a. 0.3551

b. 0.3085

c. 0.2674

d. 0.1915

3. Given the data above, find the probability that a randomly selected college student will take between 2 and 4.5 minutes to find a parking spot.

a. 0.0919

b. 0.2255

c. 0.4938

d. 0.7745

4. Given the data above, find the point in the distribution that 75.8% of the college students exceed when trying to find a parking spot.

a. 2.8 minutes.

b. 3.2 minutes.

c. 3.4 minutes.

d. 4.2 minutes.

5. The owner of a fish market determined that the average weight for a catfish is 3.2 pounds with a standard deviation of 0.8 pound. A citation catfish should be one of the top 2% in weight. Assuming the weights of catfish are normally distributed, at what weight ( in pounds ) should the citation designation be established?

a. 1.56 pounds.

b. 4.84 pounds.

c. 5.20 pounds.

d. 7.36 pounds.

6. Suppose a sample of n = 50 items is drawn from a population of manufactured products and the weight, X, of each item is recorded. Prior experience has shown that the weight has a probability distribution with µ = 6 ounces and s = 2.5 ounces. Which of the following is true about the sampling distribution of the sample mean if a sample of size “15” is selected?

a. the mean of the sampling distribution is 6 ounces.

b. the standard deviation of the sampling distribution is 2.5 ounces.

c. the shape of the sample distribution is approximately normal.

d. all of the above are correct.

7. At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 centimeter and a standard deviation of 0.1 centimeter. A random sample of 12 computer chips is taken. What is the standard error for the sample mean?

a. 0.029

b. 0.050

c. 0.091

d. 0.120

8. The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed, with mean of 3.2 pounds and standard deviation of 0.8 pound. If a sample of 64 fish yields a mean of 3.4 pounds, what is the probability of obtaining a sample mean this large or larger?

a. 0.0001

b. 0.0013

c. 0.0228

d. 0.4987

-5-

9. The standard error of the mean for a sample of 100 is 30. In order to cut the standard error of the mean to “15”, we would:

a. increase the sample size to 200.

b. increase the sample size to 400.

c. decrease the sample size to 50.

d. decrease the sample size to 25.

44. The amount of bleach that a machine pours into bottles has a mean

of 36 ounces with a standard deviation of 0.15 ounces. Suppose we

take a random sample of 36 bottles filled by this machine.

The probability that the mean of the sample is between 35.94 and

36.06 ounces is 0.9836 .

TRUE FALSE

Problems ( Fill In The Blank )

The amount of time necessary for assembly line workers to complete a product is a normal random variable with a mean of fifteen ( 15 ) minutes and a standard deviation of two ( 2 ) minutes.

Requirement:

1) What is the probability that a product is assembled in less than 12 minutes?

______________

2) What is the probability that a product is assembled between 14 and 16 minutes?

______________

3) What is the probability that a product is assembled between 10 and 12 minutes?

______________

-10-

4) What is the probability that a product is assembled in more than 11 minutes?

______________

5) What is the probability that a product is assembled in less than 20 minutes?

______________

6) Within how many minutes would 70% of the products be assembled?

cst 281 Agile CST 281. Agile and Iterative Project Management

cst 281 Agile

CST 281. Agile and Iterative Project Management

Assignment 5

1. Marsha is charged with revamping an order-taking system where customers place orders to purchase products from Martin’s Mail Order Tools and Hardware Co.. The system requires customers to supply basic ordering information (e.g., part numbers for the products they desire, the quantity of items). It should capture information on the name, address and corporate affiliation of the person making the order, as well as information on the destination to which the order will be shipped. It should be able to price the order, factoring in sales tax (based on the tax rate of the State where the order will be shipped) as well as shipping/handling charges. Finally, it should capture credit card data and be able to authorize closure to the transaction. Once the transaction is authorized, the system should route the order request to the warehouse where products are stored and should route the payments data to the accounting department.

In an attempt to capture user requirements, Marsha contacts a broad range of users and asks for their inputs on what they would like to see incorporated in the new order-taking system. Following are some of the responses she gets:

a. “The order-taking screen should be dynamic”

b. “The system must have sufficient capacity.”

c. “The rules must be flexible.”

d. “When transactions are made, all interfacing systems should be updated.”

e. “The application must be user-friendly.”

Each of these “requirements,” as stated, is too vague to be useful. Restate each requirement in order to clarify what the requirement is really addressing.

2. Assume you are in charge of a project to develop processes that will enable a call center to handle incoming calls effectively. At this moment you are working on complaint-handling procedures. Your enterprise wants to employ the following process for handling called-in complaints. First, when a call arrives, a determination must be made to see if it is a complaint. If it is not a complaint, it should be routed to the appropriate department that can handle the caller’s issues. If it is a complaint, then the nature of the complaint needs to be identified. At your enterprise, two well-established lines of complaints often arise: those dealing with the enterprise’s products, and those dealing with its processes. Product and process complaints should be routed to the Product and Process Departments respectively. Sometimes it happens that novel complaints arise that address neither products nor processes. These complaints are given special treatment, and are routed to a Senior Supervisor, who will determine how to deal with them.

a. Capture the complaint handling process described above using structured English.

b. Capture the call handling process described above using a decision table.

c. Create a flow chart to capture the call-handling process described above

d. Create a context diagram to capture the call-handling process described above

Operating System (Short answers with brief explanation.)

Operating System (Short answers with brief explanation.)

only 5 questions requires brief explain.
Answer the following: ( all the questions requires brief answers like 2~4 lines are fine.)
1. Suppose a system implements threads in kernel. Can two threads in the same process synchronize using a kernel semaphore? Explain. [4 points]
2. Consider the following codes of two processes sharing a variable turn that is initialized to 1. Do the processes satisfy all requirements of critical region solution (i.e., mutual exclusion, progress & bounded waiting)? Explain. [6 points]
Process P0 Process P1
/* other code */
while (turn != 0){ } /* wait */
update(); /* critical region */
turn = 0;
/* other code */ /* other code */
while (turn != 1){ } /* wait */
update(); /* critical region */
turn = 1;
/* other code */

3. Suppose there are two processes – i and j, sharing variables turn and flag[2]. Consider the following code for process i. Process j has similar code.
do {
flag[i] = true;
while (flag[j]) {
if (turn == j) {
flag[i] = false;
while (turn == j); /* do nothing */
flag[i] = true;
}
}

critical_task(); /* critical region */

turn = j;
flag[i] = false;

other_tasks(); /* remainder section */
}while (true);
Explain whether the above solution satisfy the necessary conditions (mutual exclusion, progress & bounded waiting) of critical region problem. [7 points]
4. A counting semaphore can have any arbitrary integral value. A process using such semaphore does not block until a down() invoked by the process on the semaphore makes the value negative. A negative value of the counting semaphore indicates that many processes blocked on the semaphore. An up() on the semaphore will wakeup a blocked process if the value is still non-positive. Describe how such a counting semaphore can be implemented using only binary semaphores and ordinary machine instructions. You may also use simple integer variables and list data structure. [7 points]

5. Briefly explain a monitor construct. How does it achieve synchronization of processes? [6 points]

HIS 105: American History after 1865

HIS 105: American History after 1865

Historical Event Influence” Please respond to the following: Please respond in a primary posting of at least 200 words. In addition, please make a substantive comment of at least 100 words to at least one [1] of your classmates.

Choose one (1) historical event and discuss the effect that it has had on you. Provide a rationale for your response

the history of the corrections system and varying approaches to corrections by era.

the history of the corrections system and varying approaches to corrections by era.
Corrections

examine the issues related to corrections as well as the best strategies and options designed to meet the goals of corrections. Your paper should include the following:

An explanation of the history of the corrections system and varying approaches to corrections by era.
A complete description of the participants of the corrections system and their roles.
A detailed analysis of the impediments, or issues, faced by corrections administrations when running a prison.
A complete description of the rights of prisoners, and the administration of required services by prison officials.
A detailed description of alternative forms of corrections, including methods of rehabilitation and reintroduction to society.
A comprehensive list of alternative strategies to incarceration with an assessment, both pro and con, showing their worth as related to traditional, incarceration strategies.
You must incorporate at least five resources. Provide statistical data and analyses justifying the positions taken in the paper, and any other scholarly or practical references that lend credibility to the project and the findings presented.
Must be eight to ten double-spaced pages in lengthand formatted according to APA style

Highly Reliable Organization Matrix

Highly Reliable Organization Matrix
Assignment: High Reliability in Health Care – Long-Term Care
These three steps: commitment by leadership, development of a culture of safety, and the use of process improvement tools, are the core recommendations made by Dr. Chassin, the president of The Joint Commission and the president of the Joint Commission Center for Transforming Healthcare. A first step in identifying whether these recommendations are being met is to compare elements of an organization to criteria which have been identified as essential to high-reliability organizations
To prepare for this Assignment:
Consider the three steps described by Dr. Chassin and the seven major criteria of the Baldridge Performance Excellence Program, and reflect on how these recommendations can apply to health care organizations, specifically to long-term care facilities.
The Assignment:
In this Assignment you will identify major elements of high-reliability organizations providing long-term care. According to the Baldrige Performance Excellence Program (MBNQA), the criteria are as follows:
• Leadership
• Strategic planning
• Customer and market focus
• Measurement, analysis, and knowledge management
• Human resource focus
• Process management
• Business/organizational performance results
Using the Highly Reliable Organization Matrix located in this week’s Learning Resources, complete the matrix by typing in the elements which meet the criteria in rows and columns. Describe each element briefly, give an example as to how this can be met in a long-term care facility, and explain the expected impact on patient care.
Based on the results of the Highly Reliable Organization Matrix, write a 1- to 2-page executive summary to the board of directors of the long-term care organization, describing elements which meet the criteria from the matrix and how any missing elements of the criteria for excellence can be met.

Assignment: High Reliability in Health Care – Long-Term Care
These three steps: commitment by leadership, development of a culture of safety, and the use of process improvement tools, are the core recommendations made by Dr. Chassin, the president of The Joint Commission and the president of the Joint Commission Center for Transforming Healthcare. A first step in identifying whether these recommendations are being met is to compare elements of an organization to criteria which have been identified as essential to high-reliability organizations
To prepare for this Assignment:
Consider the three steps described by Dr. Chassin and the seven major criteria of the Baldridge Performance Excellence Program, and reflect on how these recommendations can apply to health care organizations, specifically to long-term care facilities.
The Assignment:
In this Assignment you will identify major elements of high-reliability organizations providing long-term care. According to the Baldrige Performance Excellence Program (MBNQA), the criteria are as follows:
• Leadership
• Strategic planning
• Customer and market focus
• Measurement, analysis, and knowledge management
• Human resource focus
• Process management
• Business/organizational performance results
Using the Highly Reliable Organization Matrix located in this week’s Learning Resources, complete the matrix by typing in the elements which meet the criteria in rows and columns. Describe each element briefly, give an example as to how this can be met in a long-term care facility, and explain the expected impact on patient care.
Based on the results of the Highly Reliable Organization Matrix, write a 1- to 2-page executive summary to the board of directors of the long-term care organization, describing elements which meet the criteria from the matrix and how any missing elements of the criteria for excellence can be met.

 

Storytelling Using Song Lyric

Storytelling Using Song Lyric
As a consumer of music, we often construct our own stories to accompany our favorite songs. An old song, for instance, can conjure up long forgotten memories from our childhood, take you back to a magical moment that you experienced on your first date, make you shed a tear or laugh out loud.

For this assignment, you will use images to tell one of the stories that comes to mind when you hear a favorite song(s). Use Storify, Tumblr (Links to an external site.), a video (Links to an external site.) (export a PowerPoint or Keynote presentation as a video with the song as background music), or a basic webpage (Links to an external site.) to tell a story that merges the lyrics from one song with a sequence of 10 still images and/or animated gifs. Sources of content may include your photos of friends and family members, your drawings or word art, archival images, memes, tweets, infographics, maps, etc. You may choose to use tools to add filters, quotes, and text that improve the story telling capabilities. You are free to –and encouraged to– be creative and exploratory in your storytelling.

To insert images into Storify, you will need to follow these steps:

Upload the image from your computer to any common image sharing service (e.g. imgur.com (Links to an external site.)) or find an image online
copy/paste the image’s URL into the “Embed URL” tool seen in Storify’s story editor (the panel on the right side of the screen) while creating your story.
the image should then load in the story on the left side of the screen
To insert content from Twitter, Facebook, YouTube or other social media sites, just use the appropriate icon in Storify’s story editor.

The goal is to curate your images and present them with the lyrics in an aesthetically pleasing way. The images should help the reader to elucidate or make sense of the poem you have chosen. The images may comment directly on the line of lyric, or offer a representation of a figure, place, image, or theme within that line, or they may have a more oblique relationship to the line in question. However, you must be able to demonstrate the relevance of each component to our understanding of the lyric.

Submission:
Deliver a story that allows viewers to browse or scroll through the images at their own pace. The story should be visually appealing and tell a coherent story that can be consumed in 2-3 minutes. You do NOT need to cite your personal photos.