Question 1

Consumer Reports Health routinely compares drugs in terms of effectiveness and safety.In summer 2008 they reviewed drugs used to treat arthritis.Among the
Information reported was convenience of use (how many pills required each day) and
Possible side effects (e.g., dizziness, stomach upset).Convenience of use and possible
Side effects constitute the ________ of the study.
A)Who
B)What
C)When
D)Where
E)How

Accepted Answer

Convenience of use and possible side effects are the specific aspects or characteristics being compared, making it the "What" of the study.

Question 2

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

Accepted Answer

Cross sectional data is a type of observational data in which a set of individuals are observed at a single point in time. Out of the given options, only the percentage of American adults who work full time is based on cross sectional data as it represents a snapshot of the current workforce at a specific point in time. Company quarterly profits and historical closing stock prices are based on time series data, as they track changes in the same variable over time.

Question 3

What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of drugs used to treat arthritis?
A)drugs to treat arthritis currently on the market
B)convenience of use and possible side effects
C)summer 2008
D)the United States
E)testing on drugs

Accepted Answer

The "Who" in the study is referring to the drugs being analyzed, specifically those used to treat arthritis currently on the market.

Question 4

List the variables reported in the Consumer Reports Health article on drugs used to
treat arthritis.If the variable is quantitative, give the units.If the variable is categorical,
indicate whether it is nominal or ordinal.

Accepted Answer

The answer of List the variables reported in the Consumer...

Question 5

Which of the following is (are) time series data?
A)Weekly receipts at a clothing boutique
B)Monthly demand for an automotive part
C)Quarterly sales of automobiles
D)All of the above
E)None of the above

Accepted Answer

All of the options involve data collected over a specified time interval, making them time series data.

Question 6

For each of the following, indicate whether the data are cross-sectional or time series:
Company quarterly profits
Percentage of American adults who work full time
Historical closing stock prices

Accepted Answer

The answer of For each of the following, indicate whether...

Question 7

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

Accepted Answer

Categorical variables are non-numerical and can be divided into groups or categories. Gender is a categorical variable as it is divided into two categories, male and female. Age and income are numerical variables, while number of hours spent shopping online is also numerical and continuous.

Question 8

The Human Resources Department of a large corporation maintains records on its
employees.The table displays some of these data.List the variables in the data set.
Indicate whether each variable is categorical or quantitative.If the variable is
quantitative, give the units.If the variable is categorical, indicate whether it is nominal or
ordinal.

Accepted Answer

The answer of The Human Resources Department of a large...

Question 9

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)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

Accepted Answer

Education level is a categorical variable because it involves dividing respondents into distinct groups based on their education level. It is also ordinal scaled because the categories are ranked in a specific order of educational attainment, ranging from less than high school to college+.

Question 10

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

Accepted Answer

The "who" in a study refers to the population or the specific group of people being studied or surveyed. In this case, American adults aged 18 and older are the group being studied about their online shopping habits, making them the "who" of the study.

Question 11

In addition to the variables listed above, data were also collected on the variables
listed below.Indicate whether each is nominal or ordinal.

Accepted Answer

The answer of In addition to the variables listed above,...

Question 12

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

Accepted Answer

Cost is a quantitative variable as it represents a numerical value.

Question 13

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

Accepted Answer

The individuals who respond to the survey are referred to as respondents. They are not participants as they are not actively participating in an experiment. They are not experimental units as there is no experimental manipulation. They are not subjects as there is no manipulation of an independent variable. They are not variables as they are the individuals being studied rather than the measures being taken.

Question 14

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?
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

Accepted Answer

Categorical variables are those that can be divided into categories or groups, and cannot be measured on a continuous scale. Age and paycheck benefit deductions are numerical variables and can be measured on a continuous scale. Therefore, Age and Paycheck benefit deductions are not categorical variables. Employment category, Education, and whether or not the employee participates in a wellness program are all categorical variables, as they can be divided into groups. Therefore, choice B is the correct answer.

Question 15

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

Accepted Answer

The variable is categorical because it is collecting data on possible side effects of arthritis drugs which can be classified into categories such as nausea, headache, etc. It is nominal because there is no inherent order or ranking among the different side effects. Therefore, the best choice is E, which indicates that it is both categorical and nominal.

Question 16

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?
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.

Accepted Answer

The variable asking for the number of credits transferred into the program is a quantitative variable because it involves numerical values. It is asking for a specific quantity of credits transferred, rather than just categories or labels.

Question 17

For each of the following, indicate whether the data are cross-sectional or time series:
Weekly receipts at a clothing boutique
Monthly demand for an automotive part
Percentage of adults who bank online

Accepted Answer

The answer of For each of the following, indicate whether...

Question 18

The mission of the Pew Internet & Life Project is to "explore the impact of the
Internet on families, communities, work, home, and daily life." In August - September
2007 they conducted telephone interviews with a sample of American adults aged 18 and
older about online shopping.Describe the W's for the information given.
Who:
What:
When:
Where:
How:
Why:

Accepted Answer

The answer of The mission of the Pew Internet &...

Question 19

Consumer Reports Health routinely compares drugs in terms of effectiveness and
safety.In summer 2008 they reviewed drugs used to treat arthritis.Information was
reported on convenience of use (how many pills required each day), possible side effects
(e.g., dizziness, stomach upset), cost, and ratings of effectiveness in relieving symptoms
(very effective, somewhat effective, not effective).Describe the W's for the information
given.
Who:
What:
When:
Where:
How:
Why:

Accepted Answer

The answer of Consumer Reports Health routinely compares drugs in...

Question 20

The following table displays some of the data collected in the Pew Internet & Life
Project about online shopping.List the variables in the data set.Indicate whether each
variable is categorical or quantitative.If the variable is quantitative, give the units.

Accepted Answer

The answer of The following table displays some of the...

Quiz 2: Data

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

What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of drugs used to treat arthritis?

List the variables reported in the Consumer Reports Health article on drugs used to treat arthritis.If the variable is quantitative, give the units.If the variable is categorical, indicate whether it is nominal or ordinal.

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

For each of the following, indicate whether the data are cross-sectional or time series: Company quarterly profits Percentage of American adults who work full time Historical closing stock prices

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?

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?

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.

In addition to the variables listed above, data were also collected on the variables listed below.Indicate whether each is nominal or ordinal.

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

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 Consumer Reports Health study on the effectiveness and safety of arthritis drugs collected data on possible side effects.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?

For each of the following, indicate whether the data are cross-sectional or time series: Weekly receipts at a clothing boutique Monthly demand for an automotive part Percentage of adults who bank online

The following table displays some of the data collected in the Pew Internet & Life Project about online shopping.List the variables in the data set.Indicate whether each variable is categorical or quantitative.If the variable is quantitative, give the units.