Question 1

A Consumer Reports study on tipping takes into consideration median amount of tipping for service providers.Tipping ______________________________ .

Accepted Answer

A) is a nominal variable 
B) is a categorical variable 
C) is a quantitative variable 
D) is an ordinal variable 
E) is an irrelevant variable 
A) is a nominal variable 
B) is a categorical variable 
C) is a quantitative variable 
D) is an ordinal variable 
E) is an irrelevant variable C

Question 2

A university is interested in gauging student satisfaction in its online MBA program.A survey is designed and administered via the Internet to a sample of students currently active in the program.Which of the following would best describe the cases?

Accepted Answer

A) Participants 
B) Respondents 
C) Experimental Units 
D) Subjects 
E) Variables 
A) Participants 
B) Respondents 
C) Experimental Units 
D) Subjects 
E) Variables B

Question 3

A few of the variables for which data were collected in the Pew Internet & Life Project study about online shopping include age, gender, income, and number of hours spent shopping online per month.Which of the variables is categorical?

Accepted Answer

A) Age 
B) Gender 
C) Income 
D) Number of hours spent shopping online 
E) None 
A) Age 
B) Gender 
C) Income 
D) Number of hours spent shopping online 
E) None B

Question 4

A mid-priced chain of hotels, Hometown Suites, collects data on monthly occupancy rates for forecasting and planning purposes.These data are ______________________ .

Accepted Answer

A) cross-sectional 
B) time series 
C) categorical 
D) transactional 
E) experimental 
A) cross-sectional 
B) time series 
C) categorical 
D) transactional 
E) experimental

Question 5

What is the "What" in a Consumer Reports Tipping study on the level of tipping during the current holiday season compared to the last holiday season?

Accepted Answer

A) whether or not tipped 
B) amount of tip compared to last year 
C) the type of tip 
D) the United States 
A) whether or not tipped 
B) amount of tip compared to last year 
C) the type of tip 
D) the United States

Question 6

A locally owned spa, Alexander's, is interested in adding a tea room that not only offers specialty teas but an organic lunch menu.In order to determine how many of its regular customers would be interested in such an addition, Alexander's sent out a short e-mail questionnaire.One question asked its customers to indicate how much they spend monthly on all natural, organic products.These data are _____________________.

Accepted Answer

A) cross-sectional 
B) time series 
C) categorical 
D) transactional 
E) experimental 
A) cross-sectional 
B) time series 
C) categorical 
D) transactional 
E) experimental

Question 7

Businesses are interested in the work experience of recent graduates from a local business school.Whether or not the graduates have work experience constitutes the ________ of the study.

Accepted Answer

A) Who 
B) What 
C) When 
D) Where 
E) How 
A) Who 
B) What 
C) When 
D) Where 
E) How

Question 8

A mid-priced chain of hotels, Hometown Suites, strives to make its guests "feel at home" by providing amenities such as microwaves in every room.Comment cards are used to get feedback on the importance of such amenities by asking guests to rate them using the scale: ___ Essential ___ Important ___ Not Important.
These data are _________________________ .

Accepted Answer

A) qualitative 
B) nominal 
C) ordinal 
D) both A and B 
E) both A and C 
A) qualitative 
B) nominal 
C) ordinal 
D) both A and B 
E) both A and C

Question 9

A Consumer Reports Health study on the effectiveness and safety of arthritis drugs collected data on possible side effects.This is what kind of variable?

Accepted Answer

A) Quantitative 
B) Categorical 
C) Nominal 
D) Both A and C 
E) Both B and C 
A) Quantitative 
B) Categorical 
C) Nominal 
D) Both A and C 
E) Both B and C

Question 10

A popular travel magazine regularly reviews hotels worldwide.In a recent issue, it focused on hotels in Hawaii.Among the variables for which it provided data was whether or not the hotel included a spa.This is a _________________________ .

Accepted Answer

A) quantitative variable 
B) identifier variable 
C) ordinal variable 
D) categorical variable 
E) transactional variable 
A) quantitative variable 
B) identifier variable 
C) ordinal variable 
D) categorical variable 
E) transactional variable

Question 11

In June, 2013, Viamedia sponsored an online survey to sample a group of American adults aged 18 and older about watching television.American adults aged 18 and older constitute the ______ of the study.

Accepted Answer

A) Who 
B) What 
C) When 
D) Where 
E) How 
A) Who 
B) What 
C) When 
D) Where 
E) How

Question 12

Which of the following is (are) time series data?

Accepted Answer

A) Monthly receipts at an apparel shop 
B) Monthly demand for a technology item 
C) Dow Jones Index 
D) All of the above 
E) None of the above 
A) Monthly receipts at an apparel shop 
B) Monthly demand for a technology item 
C) Dow Jones Index 
D) All of the above 
E) None of the above

Question 13

In the fall of 2007, the Pew Internet & Life Project conducted telephone interviews with a sample of American adults aged 18 and older about online shopping.American adults aged 18 and older constitute the ______ of the study.

Accepted Answer

A) Who 
B) What 
C) When 
D) Where 
E) How 
A) Who 
B) What 
C) When 
D) Where 
E) How

Question 14

A Consumer Reports Health study on arthritis drugs takes into consideration cost.Cost _____________________________________ .

Accepted Answer

A) is a nominal variable 
B) is a categorical variable 
C) is a quantitative variable 
D) is an ordinal variable 
E) is an irrelevant variable 
A) is a nominal variable 
B) is a categorical variable 
C) is a quantitative variable 
D) is an ordinal variable 
E) is an irrelevant variable

Question 15

Which of the following is (are) based on cross sectional data?

Accepted Answer

A) Company quarterly profits 
B) Percentage of American adults who work full time 
C) Historical closing stock prices 
D) All of the above 
E) None of the above. 
A) Company quarterly profits 
B) Percentage of American adults who work full time 
C) Historical closing stock prices 
D) All of the above 
E) None of the above.

Question 16

Researchers in e-commerce design an experiment to determine what factors are most important to online consumers when completing a transaction via the Internet.Individuals perform tasks on a set of Web sites and record their impressions about various attributes.Which of the following would best describe the cases?

Accepted Answer

A) Participants 
B) Respondents 
C) Experimental Units 
D) Transactions 
E) Variables 
A) Participants 
B) Respondents 
C) Experimental Units 
D) Transactions 
E) Variables

Question 17

The Human Resources Department of a large corporation maintains records on its employees.Data are maintained of the following variables: Age, Employment Category, Education, Whether or not the employee participates in a wellness program, and Paycheck benefit deductions.Which of these variables are categorical?

Accepted Answer

A) Age, Employment Category, and Education 
B) Employment Category, Education, and Whether or not the employee participates in 
C) Education, Whether or not the employee participates in a wellness program, and 
D) All of the variables 
E) None of the variables 
A) Age, Employment Category, and Education 
B) Employment Category, Education, and Whether or not the employee participates in 
C) Education, Whether or not the employee participates in a wellness program, and 
D) All of the variables 
E) None of the variables

Question 18

The Pew Internet & Life Project study about online shopping asked respondents to indicate their education level on the following scale: Less than High School, High School, Some College, College +.Which of the following statements is (are) true?

Accepted Answer

A) Education level is a categorical variable. 
B) Education level is nominal scaled. 
C) Education level is ordinal scaled. 
D) Both A and B 
E) Both A and C 
A) Education level is a categorical variable. 
B) Education level is nominal scaled. 
C) Education level is ordinal scaled. 
D) Both A and B 
E) Both A and C

Question 19

A Consumer Reports survey on the level of tipping for service providers.This is what kind of variable?

Accepted Answer

A) Quantitative 
B) Ordinal 
C) Nominal 
D) Both A and C 
E) Both B and C 
A) Quantitative 
B) Ordinal 
C) Nominal 
D) Both A and C 
E) Both B and C

Question 20

In a survey undertaken by a university to gauge student satisfaction in its online MBA program, one question asked students to indicate the number of credits they had transferred into the program.Which of the following is true?

Accepted Answer

A) This variable is categorical. 
B) This variable is transactional. 
C) This variable is quantitative. 
D) This is an identifier variable. 
E) This variable is nominal. 
A) This variable is categorical. 
B) This variable is transactional. 
C) This variable is quantitative. 
D) This is an identifier variable. 
E) This variable is nominal.

Exam 1: Data and Decisions

A Consumer Reports study on tipping takes into consideration median amount of tipping for service providers.Tipping ______________________________ .

A university is interested in gauging student satisfaction in its online MBA program.A survey is designed and administered via the Internet to a sample of students currently active in the program.Which of the following would best describe the cases?

A few of the variables for which data were collected in the Pew Internet & Life Project study about online shopping include age, gender, income, and number of hours spent shopping online per month.Which of the variables is categorical?

A mid-priced chain of hotels, Hometown Suites, collects data on monthly occupancy rates for forecasting and planning purposes.These data are ______________________ .

What is the "What" in a Consumer Reports Tipping study on the level of tipping during the current holiday season compared to the last holiday season?

Businesses are interested in the work experience of recent graduates from a local business school.Whether or not the graduates have work experience constitutes the ________ of the study.

A Consumer Reports Health study on the effectiveness and safety of arthritis drugs collected data on possible side effects.This is what kind of variable?

A popular travel magazine regularly reviews hotels worldwide.In a recent issue, it focused on hotels in Hawaii.Among the variables for which it provided data was whether or not the hotel included a spa.This is a _________________________ .

In June, 2013, Viamedia sponsored an online survey to sample a group of American adults aged 18 and older about watching television.American adults aged 18 and older constitute the ______ of the study.

Which of the following is (are) time series data?

In the fall of 2007, the Pew Internet & Life Project conducted telephone interviews with a sample of American adults aged 18 and older about online shopping.American adults aged 18 and older constitute the ______ of the study.

A Consumer Reports Health study on arthritis drugs takes into consideration cost.Cost _____________________________________ .

Which of the following is (are) based on cross sectional data?

The Pew Internet & Life Project study about online shopping asked respondents to indicate their education level on the following scale: Less than High School, High School, Some College, College +.Which of the following statements is (are) true?

A Consumer Reports survey on the level of tipping for service providers.This is what kind of variable?

In a survey undertaken by a university to gauge student satisfaction in its online MBA program, one question asked students to indicate the number of credits they had transferred into the program.Which of the following is true?

Visualizing and Describing Categorical Data

Describing, Displaying, and Visualizing Quantitative Data

Correlation and Linear Regression

Randomness and Probability

Random Variables and Probability Models

The Normal and Other Continuous Distributions

Data Sources: Observational Studies and Surveys

Data Sources: Experiments

Sampling Distributions and Confidence Intervals for Proportio

Confidence Intervals for Means

Testing Hypotheses

More About Tests and Intervals

Comparing Two Means

Inference for Counts: Chi-Square Tests

Inference for Regression

Understanding Residuals

Multiple Regression

Building Multiple Regression Models

Time Series Analysis

Introduction to Data Mining

Quality Control

Nonparametric Methods

Decision Making and Risk

Analysis of Experiments and Observational Studies

Statistics and Data Analysis

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