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Test Bank For Intro Stats, 6th Edition by Richard D. De Veaux, Paul F. Velleman, David E. Bock
Test Bank For Intro Stats, 6th Edition by Richard D. De Veaux, Paul F. Velleman, David E. Bock
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De Veaux Intro Stats 6eChapter 1 Test
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:
Objective:
(1) Quiz A
2)
Consider the following part of a data set:
Age
(years)
Sex
Only child?
Height
(inches)
Weight
(pounds)
Credit
Hours
GPA
Major
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.
Objective:
(1) Quiz A
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:
Objective:
(2) Quiz B
1 4)
List the variables. Indicate whether each variable is categorical or quantitative. If the variable is quantitative, tell
the units.
Objective:
(2) Quiz B
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:
Objective:
(3) Quiz C
6)
List the variables. Indicate whether each variable is categorical or quantitative. If the variable is quantitative, tell
the units.
Objective:
(3) Quiz C
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 of American adults
aged 18 and older about online shopping. American adults aged 18 and older constitute the ________ of the study.
A)
When
B)
How
C)
What
D)
Where
E)
Who
Objective:
(4) Quiz D
8)
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)
Number of hours spent shopping online
B)
Gender
C)
Income
D)
Age
E)
None
Objective:
(4) Quiz D
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 ordinal scaled.
B)
Education level is nominal scaled.
C)
Education level is a categorical variable.
D)
Both A and B
E)
Both A and C
Objective:
(4) Quiz D
2 10)
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)
When
B)
Where
C)
What
D)
How
E)
Who
Objective:
(4) Quiz D
11)
What is the "Who" in a Consumer Reports Health study on the effectiveness and safety of drugs used to treat
arthritis?
A)
summer 2008
B)
testing on drugs
C)
convenience of use and possible side effects
D)
drugs to treat arthritis currently on the market
E)
the United States
Objective:
(4) Quiz D
12)
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
Objective:
(4) Quiz D
13)
A Consumer Reports Health study on arthritis drugs takes into consideration cost. Cost
A)
is a nominal variable.
B)
is a quantitative variable.
C)
is an ordinal variable.
D)
is an irrelevant variable.
E)
is a categorical variable.
Objective:
(4) Quiz D
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)
Employment Category, Education
, and Whether or not the employee participates in a wellness program
B)
Education, Whether or not the employee participates in a wellness program
, and Paycheck benefit deductions
C)
Age, Employment Category
, and Education
D)
All of the variables
E)
None of the variables
Objective:
(4) Quiz D
15)
A Consumer Reports study on tipping takes into consideration median amount of tipping for service providers.
Tipping
A)
is an irrelevant variable.
B)
is a nominal variable.
C)
is a categorical variable.
D)
is an ordinal variable.
E)
is a quantitative variable.
Objective:
(4) Quiz D
3 16)
The Human Resources Department of a large corporation maintains records on its employees. 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)
Employment Category and Education
B)
Age, Employment Category
, and Education
C)
Education and Whether or not the employee has an advanced degree
D)
All of the variables
E)
None of the variables
Objective:
(4) Quiz D
17)
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)
Variables
B)
Subjects
C)
Experimental Units
D)
Participants
E)
Respondents
Objective:
(5) Quiz E
18)
In a survey undertaken by a university to gauge student satisfaction in its online MBA program, one question
asked students to indicate their employment status (unemployed, employed part
-
time, employed full
-
time).
Which of the following is TRUE?
A)
This variable is quantitative.
B)
This variable is categorical.
C)
This is an identifier variable.
D)
Both A and C.
E)
Both B and C.
Objective:
(5) Quiz E
19)
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 transactional.
B)
This is an identifier variable.
C)
This variable is nominal.
D)
This variable is quantitative.
E)
This variable is categorical.
Objective:
(5) Quiz E
20)
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?
A)
Participants
B)
Identifiers
C)
Respondents
D)
Variables
E)
Experimental Units
Objective:
(5) Quiz E
4
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