Question 1

Your weight recorded at your annual physical would not be ratio data,because you cannot have zero weight.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is numerical data?

Accepted Answer

A)  Your gender
B)  The brand of cell phone you own
C)  Whether you have an American Express card
D)  The fuel economy (MPG) of your car

Question 3

Which survey method would you recommend to survey opinions of airline passengers about the cleanliness of the restrooms in the Detroit airport? Why not the others?

Accepted Answer

This is a difficult sampling problem.Res...

Question 4

Running times for 500 runners in a 5k race would be a univariate data set.

Accepted Answer

A) True 
 B)False

Question 5

The weight of a bag of dog food is an example of discrete data.

Accepted Answer

A) True 
 B)False

Question 6

Categorical data are also referred to as nominal or qualitative data.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is a correct statement?

Accepted Answer

A)  Choosing the third person listed on every fifth page of the phone book is stratified sampling.
B)  An advantage of a systematic sample is that no list of enumerated data items is required.
C)  Convenience sampling is used to study shoppers in convenience stores.
D)  Judgment sampling is an example of true random sampling.

Question 8

An investment firm rates bonds for AardCo Inc.as "B+," while bonds of Deva Corp.are rated "AA." Which level of measurement would be appropriate for such data?

Accepted Answer

A)  Nominal
B)  Ordinal
C)  Interval
D)  Ratio

Question 9

An advantage of a systematic sample is that no list of enumerated data items is required.

Accepted Answer

A) True 
 B)False

Question 10

Ordinal data can be treated as if it were nominal data but not vice versa.

Accepted Answer

A) True 
 B)False

Question 11

A random sample is one in which the

Accepted Answer

A)  probability that an item is selected for the sample is the same for all population items.
B)  population items are selected haphazardly by experienced workers.
C)  items to be selected from the population are specified based on expert judgment.
D)  probability of selecting a population item depends on the item's data value.

Question 12

Using a sample to make generalizations about an aspect of a population is called

Accepted Answer

A)  data mining.
B)  descriptive statistics.
C)  random sampling.
D)  statistical inference.

Question 13

By taking a systematic sample,in which we select every 50th shopper arriving at a specific store,we are approximating a random sample of shoppers.

Accepted Answer

A) True 
 B)False

Question 14

Which statement is correct?

Accepted Answer

A)  Judgment sampling is preferred to systematic sampling.
B)  Sampling without replacement introduces bias in our estimates of parameters.
C)  Cluster sampling is useful when strata characteristics are unknown.
D)  Focus groups usually work best without a moderator.

Question 15

Ordinal data are data that can be ranked based on some natural characteristic of the items.

Accepted Answer

A) True 
 B)False

Question 16

Nominal data refer to data that can be ordered in a natural way.

Accepted Answer

A) True 
 B)False

Question 17

The number of checks processed at a bank in a day is an example of categorical data.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is true?

Accepted Answer

A)  The type of charge card used by a customer (Visa,MasterCard,AmEx) is ordinal data.
B)  The duration (minutes) of a flight from Boston to Minneapolis is ratio data.
C)  The number of Nobel Prize-winning faculty at Oxnard University is continuous data.
D)  The number of regional warehouses owned by Jankord Industries is ordinal data.

Question 19

Explain the concept of a focus group.In what ways does a focus group resemble a survey? Why is a moderator desirable? What else is required to make a successful focus group?

Accepted Answer

Data collected in a focus group are rich...

Question 20

A Likert scale with an even number of scale points between "Strongly Agree" and "Strongly Disagree"

Accepted Answer

A)  cannot have equal scale distances.
B)  is intended to prevent "neutral" choices.
C)  must have a verbal label on each scale point.
D)  is rarely used in surveys.

Exam 2: Data Collection

Categorical data are also referred to as nominal or qualitative data.

Correct AnswerverifiedShow Answer

An investment firm rates bonds for AardCo Inc.as "B+," while bonds of Deva Corp.are rated "AA." Which level of measurement would be appropriate for such data?

Correct AnswerverifiedShow Answer

By taking a systematic sample,in which we select every 50th shopper arriving at a specific store,we are approximating a random sample of shoppers.

Correct AnswerverifiedShow Answer

Your weight recorded at your annual physical would not be ratio data,because you cannot have zero weight.

Correct AnswerverifiedShow Answer

Which of the following is a correct statement?

Correct AnswerverifiedShow Answer

Which of the following is numerical data?

Correct AnswerverifiedShow Answer

Nominal data refer to data that can be ordered in a natural way.

Correct AnswerverifiedShow Answer

Which of the following is true?

Correct AnswerverifiedShow Answer

Which survey method would you recommend to survey opinions of airline passengers about the cleanliness of the restrooms in the Detroit airport? Why not the others?

Correct AnswerverifiedThis is a difficult sampling problem.Res...View AnswerShow Answer

A random sample is one in which the

Correct AnswerverifiedShow Answer

A Likert scale with an even number of scale points between "Strongly Agree" and "Strongly Disagree"

Correct AnswerverifiedShow Answer

Explain the concept of a focus group.In what ways does a focus group resemble a survey? Why is a moderator desirable? What else is required to make a successful focus group?

Correct AnswerverifiedData collected in a focus group are rich...View AnswerShow Answer

The number of checks processed at a bank in a day is an example of categorical data.

Correct AnswerverifiedShow Answer

Using a sample to make generalizations about an aspect of a population is called

Correct AnswerverifiedShow Answer

The weight of a bag of dog food is an example of discrete data.

Correct AnswerverifiedShow Answer

Running times for 500 runners in a 5k race would be a univariate data set.

Correct AnswerverifiedShow Answer

Ordinal data are data that can be ranked based on some natural characteristic of the items.

Correct AnswerverifiedShow Answer

Which statement is correct?

Correct AnswerverifiedShow Answer

An advantage of a systematic sample is that no list of enumerated data items is required.

Correct AnswerverifiedShow Answer

Ordinal data can be treated as if it were nominal data but not vice versa.

Correct AnswerverifiedShow Answer

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This is a difficult sampling problem.Res...
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Data collected in a focus group are rich...
View Answer

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