Test Bank
Elementary Statistics,
By Mario F. Triola
14th edition
, Contents
Chapter 1
Exam a ...............................................................................................................................................................................1
Exam b .............................................................................................................................................................................. 5
Exam c .............................................................................................................................................................................. 9
Chapter 2
Exam a .............................................................................................................................................................................13
Exam b… ........................................................................................................................................................................ 24
Exam c ............................................................................................................................................................................ 33
Chapter 3
Exam a .............................................................................................................................................................................41
Exam b ............................................................................................................................................................................ 46
Exam c ............................................................................................................................................................................ 51
Chapter 4
Exam a .............................................................................................................................................................................56
Exam b ............................................................................................................................................................................ 60
Exam c ............................................................................................................................................................................ 64
Chapter 5
Exam a .............................................................................................................................................................................67
Exam b ............................................................................................................................................................................ 71
Exam c ............................................................................................................................................................................ 75
Chapter 6
Exam a .............................................................................................................................................................................80
Exam b ............................................................................................................................................................................ 84
Exam c ............................................................................................................................................................................ 88
Chapter 7
Exam a .............................................................................................................................................................................94
Exam b ............................................................................................................................................................................ 98
Exam c ........................................................................................................................................................................... 102
Chapter 8
Exam a ............................................................................................................................................................................ 106
Exam b… ....................................................................................................................................................................... 111
Exam c ........................................................................................................................................................................... 116
,Chapter 9
Exam a ........................................................................................................................................................................... 122
Exam b ........................................................................................................................................................................... 127
Exam c ........................................................................................................................................................................... 133
Chapter 10
Exam a ........................................................................................................................................................................... 141
Exam b ........................................................................................................................................................................... 148
Exam c ........................................................................................................................................................................... 154
Chapter 11
Exam a ........................................................................................................................................................................... 159
Exam b ........................................................................................................................................................................... 165
Exam c ........................................................................................................................................................................... 171
Chapter 12
Exam a ........................................................................................................................................................................... 177
Exam b ........................................................................................................................................................................... 184
Exam c ........................................................................................................................................................................... 191
Chapter 13
Exam a… ....................................................................................................................................................................... 198
Exam b ........................................................................................................................................................................... 203
Exam c ........................................................................................................................................................................... 208
Chapter 14
Exam a ........................................................................................................................................................................... 213
Exam b ........................................................................................................................................................................... 223
Exam c ........................................................................................................................................................................... 231
, Chapter 1 exam a
Name
Multiple choice. Choose the one alternative that best completes the statement or answers the question.
1) Determine whether the given description corresponds to an experiment or an observational 1)
study. A stock analyst selects a stock from a group of twenty for investment by choosing the
stock with the greatest earnings per share reported for the last quarter.
A) Experiment b) observational study
2) Identify which type of sampling is used. The name of each contestant is written on a separate 2)
card, the cards are placed in a bag, and three names are picked from the bag.
A) Simple random
B) Cluster
C) Convenience
D) Stratified
E) Systematic
3) Identify which type of sampling is used. To avoid working late, a quality control analyst 3)
simply inspects the first 100 items produced in a day.
A) Systematic
B) Stratified
C) Convenience
D) Cluster
E) Simple random
4) An education expert is researching teaching methods and wishes to interview teachers from a 4)
particular school district. She randomly selects ten schools from the district and interviews
all of the teachers at the selected schools. Does this sampling plan result in a random sample?
Simple random sample? Explain.
A) No; no. The sample is not random because teachers in small schools are more likely
to be selected than teachers in larger schools. It is not a simple random sample
because some samples are not possible, such as a sample that includes teachers from
schools that were not selected.
B) Yes; yes. The sample is random because all teachers have the same chance of being
selected. It is a simple random sample because all samples have the same chance of
being selected.
C) Yes; no. The sample is random because all teachers have the same chance of being
selected. It is not a simple random sample because some samples are not possible,
such as a sample that includes teachers from schools that were not selected.
D) No; yes. The sample is not random because teachers in small schools are more likely
to be selected than teachers in larger schools. It is a simple random sample because
all samples have the same chance of being selected.
5) Identify the type of observational study used. A town obtains current employment data by 5)
polling 10,000 of its citizens this month.
A) Prospective b) retrospective c) cross-sectional d) none of these
6) Determine whether the given value is a discrete or continuous variable. People are asked to 6)
state how many times in the last month they visited their family doctor.
A) Continuous b) discrete
Copyright © 2018 Pearson Education, Inc.
1
VERIFIEDBRAINBOOSTER
Elementary Statistics,
By Mario F. Triola
14th edition
, Contents
Chapter 1
Exam a ...............................................................................................................................................................................1
Exam b .............................................................................................................................................................................. 5
Exam c .............................................................................................................................................................................. 9
Chapter 2
Exam a .............................................................................................................................................................................13
Exam b… ........................................................................................................................................................................ 24
Exam c ............................................................................................................................................................................ 33
Chapter 3
Exam a .............................................................................................................................................................................41
Exam b ............................................................................................................................................................................ 46
Exam c ............................................................................................................................................................................ 51
Chapter 4
Exam a .............................................................................................................................................................................56
Exam b ............................................................................................................................................................................ 60
Exam c ............................................................................................................................................................................ 64
Chapter 5
Exam a .............................................................................................................................................................................67
Exam b ............................................................................................................................................................................ 71
Exam c ............................................................................................................................................................................ 75
Chapter 6
Exam a .............................................................................................................................................................................80
Exam b ............................................................................................................................................................................ 84
Exam c ............................................................................................................................................................................ 88
Chapter 7
Exam a .............................................................................................................................................................................94
Exam b ............................................................................................................................................................................ 98
Exam c ........................................................................................................................................................................... 102
Chapter 8
Exam a ............................................................................................................................................................................ 106
Exam b… ....................................................................................................................................................................... 111
Exam c ........................................................................................................................................................................... 116
,Chapter 9
Exam a ........................................................................................................................................................................... 122
Exam b ........................................................................................................................................................................... 127
Exam c ........................................................................................................................................................................... 133
Chapter 10
Exam a ........................................................................................................................................................................... 141
Exam b ........................................................................................................................................................................... 148
Exam c ........................................................................................................................................................................... 154
Chapter 11
Exam a ........................................................................................................................................................................... 159
Exam b ........................................................................................................................................................................... 165
Exam c ........................................................................................................................................................................... 171
Chapter 12
Exam a ........................................................................................................................................................................... 177
Exam b ........................................................................................................................................................................... 184
Exam c ........................................................................................................................................................................... 191
Chapter 13
Exam a… ....................................................................................................................................................................... 198
Exam b ........................................................................................................................................................................... 203
Exam c ........................................................................................................................................................................... 208
Chapter 14
Exam a ........................................................................................................................................................................... 213
Exam b ........................................................................................................................................................................... 223
Exam c ........................................................................................................................................................................... 231
, Chapter 1 exam a
Name
Multiple choice. Choose the one alternative that best completes the statement or answers the question.
1) Determine whether the given description corresponds to an experiment or an observational 1)
study. A stock analyst selects a stock from a group of twenty for investment by choosing the
stock with the greatest earnings per share reported for the last quarter.
A) Experiment b) observational study
2) Identify which type of sampling is used. The name of each contestant is written on a separate 2)
card, the cards are placed in a bag, and three names are picked from the bag.
A) Simple random
B) Cluster
C) Convenience
D) Stratified
E) Systematic
3) Identify which type of sampling is used. To avoid working late, a quality control analyst 3)
simply inspects the first 100 items produced in a day.
A) Systematic
B) Stratified
C) Convenience
D) Cluster
E) Simple random
4) An education expert is researching teaching methods and wishes to interview teachers from a 4)
particular school district. She randomly selects ten schools from the district and interviews
all of the teachers at the selected schools. Does this sampling plan result in a random sample?
Simple random sample? Explain.
A) No; no. The sample is not random because teachers in small schools are more likely
to be selected than teachers in larger schools. It is not a simple random sample
because some samples are not possible, such as a sample that includes teachers from
schools that were not selected.
B) Yes; yes. The sample is random because all teachers have the same chance of being
selected. It is a simple random sample because all samples have the same chance of
being selected.
C) Yes; no. The sample is random because all teachers have the same chance of being
selected. It is not a simple random sample because some samples are not possible,
such as a sample that includes teachers from schools that were not selected.
D) No; yes. The sample is not random because teachers in small schools are more likely
to be selected than teachers in larger schools. It is a simple random sample because
all samples have the same chance of being selected.
5) Identify the type of observational study used. A town obtains current employment data by 5)
polling 10,000 of its citizens this month.
A) Prospective b) retrospective c) cross-sectional d) none of these
6) Determine whether the given value is a discrete or continuous variable. People are asked to 6)
state how many times in the last month they visited their family doctor.
A) Continuous b) discrete
Copyright © 2018 Pearson Education, Inc.
1
VERIFIEDBRAINBOOSTER
