Q: A Net Promoter Score (NPS) is calculated as:

$$\text{NPS} = (\% \text{ of Promoters}) - (\% \text{ of Detractors})$$

Question 1

Which of the following best describes the process of measurement in statistics for business?

Accepted Answer

Assigning numbers to phenomena in the real world based on mapping rules.

Question 2

A researcher collects data from a survey she designed specifically for her study. This data is considered:

Accepted Answer

Primary data

Question 3

Which of the following is an example of secondary data?

Accepted Answer

Data contained in the Statistical Abstract of the United States

Question 4

Which of the following is NOT an advantage of using primary data?

Accepted Answer

No control over the data production process

Question 5

A variable is best defined as:

Accepted Answer

An attribute of the population or process that can assume more than one value

Question 6

Which of the following best describes an experimental study?

Accepted Answer

The analyst manipulates one or more independent variables to observe their effect on a dependent variable.

Question 7

Which of the following is a disadvantage of observational studies compared to experimental studies?

Accepted Answer

They can only provide weak evidence of causation.

Question 8

Which of the following is a key aspect of measurement accuracy?

Accepted Answer

Unbiasedness and reliability

Question 9

A measurement process is considered reliable if:

Accepted Answer

Repeated measurements on the same unit give approximately the same result.

Question 10

Which of the following is an example of a nominal measurement scale?

Accepted Answer

Assigning 1 to defective and 0 to nondefective products

Question 11

Which measurement scale allows for meaningful addition and subtraction, but not multiplication or division?

Accepted Answer

Interval scale

Question 12

A Net Promoter Score (NPS) is calculated as:

Accepted Answer

$$	ext{NPS} = (\% 	ext{ of Promoters}) - (\% 	ext{ of Detractors})$$

Question 13

Which of the following is a source of measurement error?

Accepted Answer

The measurement instrument does not adequately represent the property of interest.

Question 14

Which of the following best describes a mapping rule in measurement?

Accepted Answer

A statement that dictates the assignment of numbers to empirical events.

Question 15

Which of the following is a characteristic of a valid measurement instrument?

Accepted Answer

It measures what it claims to measure.

Question 16

A researcher wants to measure customer satisfaction. She defines satisfaction as a score on a 10-point scale, where 1 means 'not satisfied at all' and 10 means 'extremely satisfied.' This is an example of:

Accepted Answer

An operational definition

Question 17

Which of the following is true about ratio scales?

Accepted Answer

They have a meaningful zero and allow all arithmetic operations.

Question 18

Which of the following best describes the difference between a conceptual and an operational definition?

Accepted Answer

A conceptual definition relates the concept to other concepts, while an operational definition specifies how to measure it.

Question 19

Which of the following is NOT a recommended step in the measurement process?

Accepted Answer

Ignoring the evaluation of the measurement instrument

Business Statistics: Measurement, Data Collection, and Measurement Scales

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