Stats: Data and
Models, 6th edition
Richard D. De Veaux, Velleman, Bock
TEST BANK
Complete Test Bank | Latest Edition
|| Answers Included ||
, Test Bank - Stats: Data and Models, 6th Edition by Richard D. De Veaux, Velleman, Bock
Part 1 - Exploring and understanding data
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
1) One of the reasons that the Monitoring the Future (MTF) project was started was "to study changes in the
beliefs, attitudes, and behavior of young people in the United States." Data are collected from 8th, 10th, and
12th graders each year. To get a representative nationwide sample, surveys are given to a randomly selected
group of students. In Spring 2016, students were asked about alcohol, illegal drug, and cigarette use. Describe
the W's, if the information is given. If the information is not given, state that it is not specified.
• Who:
• What:
• When:
• Where:
• How:
• Why:
2) Consider the following part of a data set:
Age Sex Only child? Height Weight Credit GPA Major
(years) (inches) (pounds) Hours
21 Female Yes 67.00 140.0 16 3.60 animal science
20 Female No 62.00 130.0 18 3.86 biology
28 Female No 64.00 188.0 21 3.25 psychology
21 Male No 65.00 140.0 15 2.95 psychology
24 Female No 67.00 130.0 20 3.00 anthropology
22 Male Yes 68.00 135.0 15 2.94 journalism
List the variables in the data set. Indicate whether each variable is treated as categorical or quantitative in this
data set. If the variable is quantitative, state the units.
In November 2003 Discover published an article on the colonies of ants. They reported some basic information about
many species of ants and the results of some discoveries found by myrmecologist Walter Tschinkel of the University of
Florida. Information included the scientific name of the ant species, the geographic location, the depth of the nest (in feet),
the number of chambers in the nest, and the number of ants in the colony. The article documented how new ant colonies
begin, the ant-nest design, and how nests differ in shape, number, size of chambers, and how they are connected,
depending on the species. It reported that nest designs include vertical, horizontal, or inclined tunnels for movement and
transport of food and ants.
3) Describe the W's, if the information is given:
• Who:
• What:
• When:
• Where:
• How:
• Why:
4) List the variables. Indicate whether each variable is categorical or quantitative. If the variable is quantitative,
tell the units.
1
,In May 2017, Wirecutter published an article entitled "The Best True Wireless Headphones So Far"
(http://thewirecutter.com/reviews/best-true-wireless-headphones/). They tested 11 "of the most promising true
wireless in-ear headphones." Among other things, the article told the brand of each pair of headphones, its price, battery
life, audio quality, ease of setup, and other characteristics. The article provides a number of recommendations including
best for the money, best for the gym, best for Apple, and best for Android. The author, Lauren Dragan, describes herself as
a voice actor with an audio production degree who has spent hundreds of hours testing headphones for Wirecutter.
5) Describe the W's, if the information is given:
• Who:
• What:
• When:
• Where:
• How:
• Why:
6) List the variables. Indicate whether each variable is categorical or quantitative. If the variable is quantitative,
tell the units.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
7) In the fall of 2007, the Pew Internet & Life Project conducted telephone interviews with a sample 7)
of American adults aged 18 and older about online shopping. American adults aged 18 and
older constitute the ________ of the study.
A) When B) Where C) How D) What E) Who
8) A few of the variables for which data were collected in the Pew Internet & Life Project study about 8)
online shopping include age, gender, income, and number of hours spent shopping online per
month. Which of the variables is categorical?
A) Number of hours spent shopping online
B) Age
C) Income
D) Gender
E) None
9) The Pew Internet & Life Project study about online shopping asked respondents to indicate their 9)
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
10) Consumer Reports Health routinely compares drugs in terms of effectiveness and safety. In 10)
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) What B) Who C) How D) Where E) When
2
, 11) What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of drugs 11)
used to treat arthritis?
A) testing on drugs
B) convenience of use and possible side effects
C) the United States
D) drugs to treat arthritis currently on the market
E) summer 2008
12) A Consumer Reports Health study on the effectiveness and safety of arthritis drugs collected data 12)
on possible side effects. This is what kind of variable?
A) Quantitative
B) Nominal
C) Categorical
D) Both A and C
E) Both B and C
13) A Consumer Reports Health study on arthritis drugs takes into consideration cost. Cost 13)
A) is an ordinal variable.
B) is a categorical variable.
C) is an irrelevant variable.
D) is a quantitative variable.
E) is a nominal variable.
14) The Human Resources Department of a large corporation maintains records on its employees. 14)
Data are maintained of the following variables: Age, Employment Category, Education Level, and
Whether or not the employee has an advanced degree. Which of these variables are categorical?
A) Age, Employment Category, and Education Level
B) All of the variables
C) None of the variables
D) Education Level and Whether or not the employee has an advanced degree
E) Employment Category, Education Level, and Whether or not the employee has an advanced degree
15) A Consumer Reports study on tipping takes into consideration median amount of tipping for 15)
service providers. Tipping
A) is an irrelevant variable.
B) is a nominal variable.
C) is a quantitative variable.
D) is a categorical variable.
E) is an ordinal variable.
16) The Human Resources Department of a large corporation maintains records on its employees. 16)
Data are maintained of the following variables: Age, Employment Category, Education, and Whether
or not the employee has an advanced degree. Which of these variables are categorical?
A) Age, Employment Category, and Education
B) Education and Whether or not the employee has an advanced degree
C) Employment Category and Education
D) All of the variables
E) None of the variables
3
Models, 6th edition
Richard D. De Veaux, Velleman, Bock
TEST BANK
Complete Test Bank | Latest Edition
|| Answers Included ||
, Test Bank - Stats: Data and Models, 6th Edition by Richard D. De Veaux, Velleman, Bock
Part 1 - Exploring and understanding data
ESSAY. Write your answer in the space provided or on a separate sheet of paper.
1) One of the reasons that the Monitoring the Future (MTF) project was started was "to study changes in the
beliefs, attitudes, and behavior of young people in the United States." Data are collected from 8th, 10th, and
12th graders each year. To get a representative nationwide sample, surveys are given to a randomly selected
group of students. In Spring 2016, students were asked about alcohol, illegal drug, and cigarette use. Describe
the W's, if the information is given. If the information is not given, state that it is not specified.
• Who:
• What:
• When:
• Where:
• How:
• Why:
2) Consider the following part of a data set:
Age Sex Only child? Height Weight Credit GPA Major
(years) (inches) (pounds) Hours
21 Female Yes 67.00 140.0 16 3.60 animal science
20 Female No 62.00 130.0 18 3.86 biology
28 Female No 64.00 188.0 21 3.25 psychology
21 Male No 65.00 140.0 15 2.95 psychology
24 Female No 67.00 130.0 20 3.00 anthropology
22 Male Yes 68.00 135.0 15 2.94 journalism
List the variables in the data set. Indicate whether each variable is treated as categorical or quantitative in this
data set. If the variable is quantitative, state the units.
In November 2003 Discover published an article on the colonies of ants. They reported some basic information about
many species of ants and the results of some discoveries found by myrmecologist Walter Tschinkel of the University of
Florida. Information included the scientific name of the ant species, the geographic location, the depth of the nest (in feet),
the number of chambers in the nest, and the number of ants in the colony. The article documented how new ant colonies
begin, the ant-nest design, and how nests differ in shape, number, size of chambers, and how they are connected,
depending on the species. It reported that nest designs include vertical, horizontal, or inclined tunnels for movement and
transport of food and ants.
3) Describe the W's, if the information is given:
• Who:
• What:
• When:
• Where:
• How:
• Why:
4) List the variables. Indicate whether each variable is categorical or quantitative. If the variable is quantitative,
tell the units.
1
,In May 2017, Wirecutter published an article entitled "The Best True Wireless Headphones So Far"
(http://thewirecutter.com/reviews/best-true-wireless-headphones/). They tested 11 "of the most promising true
wireless in-ear headphones." Among other things, the article told the brand of each pair of headphones, its price, battery
life, audio quality, ease of setup, and other characteristics. The article provides a number of recommendations including
best for the money, best for the gym, best for Apple, and best for Android. The author, Lauren Dragan, describes herself as
a voice actor with an audio production degree who has spent hundreds of hours testing headphones for Wirecutter.
5) Describe the W's, if the information is given:
• Who:
• What:
• When:
• Where:
• How:
• Why:
6) List the variables. Indicate whether each variable is categorical or quantitative. If the variable is quantitative,
tell the units.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
7) In the fall of 2007, the Pew Internet & Life Project conducted telephone interviews with a sample 7)
of American adults aged 18 and older about online shopping. American adults aged 18 and
older constitute the ________ of the study.
A) When B) Where C) How D) What E) Who
8) A few of the variables for which data were collected in the Pew Internet & Life Project study about 8)
online shopping include age, gender, income, and number of hours spent shopping online per
month. Which of the variables is categorical?
A) Number of hours spent shopping online
B) Age
C) Income
D) Gender
E) None
9) The Pew Internet & Life Project study about online shopping asked respondents to indicate their 9)
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
10) Consumer Reports Health routinely compares drugs in terms of effectiveness and safety. In 10)
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) What B) Who C) How D) Where E) When
2
, 11) What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of drugs 11)
used to treat arthritis?
A) testing on drugs
B) convenience of use and possible side effects
C) the United States
D) drugs to treat arthritis currently on the market
E) summer 2008
12) A Consumer Reports Health study on the effectiveness and safety of arthritis drugs collected data 12)
on possible side effects. This is what kind of variable?
A) Quantitative
B) Nominal
C) Categorical
D) Both A and C
E) Both B and C
13) A Consumer Reports Health study on arthritis drugs takes into consideration cost. Cost 13)
A) is an ordinal variable.
B) is a categorical variable.
C) is an irrelevant variable.
D) is a quantitative variable.
E) is a nominal variable.
14) The Human Resources Department of a large corporation maintains records on its employees. 14)
Data are maintained of the following variables: Age, Employment Category, Education Level, and
Whether or not the employee has an advanced degree. Which of these variables are categorical?
A) Age, Employment Category, and Education Level
B) All of the variables
C) None of the variables
D) Education Level and Whether or not the employee has an advanced degree
E) Employment Category, Education Level, and Whether or not the employee has an advanced degree
15) A Consumer Reports study on tipping takes into consideration median amount of tipping for 15)
service providers. Tipping
A) is an irrelevant variable.
B) is a nominal variable.
C) is a quantitative variable.
D) is a categorical variable.
E) is an ordinal variable.
16) The Human Resources Department of a large corporation maintains records on its employees. 16)
Data are maintained of the following variables: Age, Employment Category, Education, and Whether
or not the employee has an advanced degree. Which of these variables are categorical?
A) Age, Employment Category, and Education
B) Education and Whether or not the employee has an advanced degree
C) Employment Category and Education
D) All of the variables
E) None of the variables
3
