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```1. Question: (TCO 11) Which of the following is not a tool of descriptive statistics?

a. frequency distribution

c. proportion IN

d. histogram

Instructor Explanation: (See p. 556)

2. Question: (TCO 11) The component of statistical methodology that includes the collection, organization, and summarization of data is called

a. descriptive statistics.

b. analytical statistics.

c. inferential statistics

d. predictive statistics.

Instructor Explanation: (See p. 555)

3. Question: (TCO 11) _____ is the process of drawing conclusions about unknown characteristics of a population from data.

a. Logical inference

b. Post-data inference

c. Statistical inference

d. Random inference

Instructor Explanation: (See p. 561)

4. Question: (TCO 11) Partitioning a population into hierarchical groups or levels, and selecting a sample from each group or level is known as which of the following?

simple random sampling

stratified sampling

systematic sampling

judgment sampling

Instructor Explanation: (See p. 551)

5. Question: (TCO 11) Which of the following constitutes an operational approach to reducing sampling error?

cross-checking research designs with knowledgeable analysts

questioning the assumption that tomorrow’s and today’s population are comparable

taking a larger sample from the population

reducing conditions that contribute to dissimilar population segments

Instructor Explanation: (See p. 552)

6. Question: (TCO 12) A statistical technique that is useful for interpreting scatter diagrams is which of the following?

the average

correlation analysis

the standard deviation

nominal group technique

Instructor Explanation: (See p. 677)

7. Question: (TCO 12) To enable a service process to be mistake-proof, unlike manufacturing processes, the _______ must be considered.

process owner

customer

environment

manager

Instructor Explanation: (See p. 680)

8. Question: (TCO 12) Which of the following pairs of charts are used together?

a. X-Bar chart and p-chart

R-chart and p-chart

R-chart and s-chart

X-Bar chart and R-chart

Instructor Explanation: (See p. 718)

9. Question: (TCO 12) Short repeated patterns in a control chart, with alternating high peaks and low valleys, are known as

a. trends.

b. cycles.

c. spikes.

d. reciprocals.

Instructor Explanation: (See p. 725)

10. Question: (TCO 12) If a process is neither capable nor in control, the appropriate first step is to

a. remove common causes.

b. redesign the equipment.

c. remove sources of special cause variation.

d. determine the process capability index.

Instructor Explanation: (See p. 715)

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1. Question: (TCO 11) Which of the following is not a tool of descriptive statistics?

a. frequency distribution

c. proportion IN

d. histogram

Instructor Explanation: (See p. 556)

2. Question: (TCO 11) The component of statistical methodology that includes the collection, organization, and summarization of data is called

a. descriptive statistics.

b. analytical statistics.

c. inferential statistics

d. predictive statistics.

Instructor Explanation: (See p. 555)

3. Question: (TCO 11) _____ is the process of drawing conclusions about unknown characteristics of a population from data.

a. Logical inference

b. Post-data inference

c. Statistical inference

d. Random inference

Instructor Explanation: (See p. 561)

4. Question: (TCO 11) Partitioning a population into hierarchical groups or levels, and selecting a sample from each group or level is known as which of the following?

simple random sampling

stratified sampling

systematic sampling

judgment sampling

Instructor Explanation: (See p. 551)

5. Question: (TCO 11) Which of the following constitutes an operational approach to reducing sampling error?

cross-checking research designs with knowledgeable analysts

questioning the assumption that tomorrow’s and today’s population are comparable

taking a larger sample from the population

reducing conditions that contribute to dissimilar population segments

Instructor Explanation: (See p. 552)

6. Question: (TCO 12) A statistical technique that is useful for interpreting scatter diagrams is which of the following?

the average

correlation analysis

the standard deviation

nominal group technique

Instructor Explanation: (See p. 677)

7. Question: (TCO 12) To enable a service process to be mistake-proof, unlike manufacturing processes, the _______ must be considered.

process owner

customer

environment

manager

Instructor Explanation: (See p. 680)

8. Question: (TCO 12) Which of the following pairs of charts are used together?

a. X-Bar chart and p-chart

R-chart and p-chart

R-chart and s-chart

X-Bar chart and R-chart

Instructor Explanation: (See p. 718)

9. Question: (TCO 12) Short repeated patterns in a control chart, with alternating high peaks and low valleys, are known as

a. trends.

b. cycles.

c. spikes.

d. reciprocals.

Instructor Explanation: (See p. 725)