TEST BANK FOR ELEMENTARY STATISTICS, 14TH
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EDITION BY MARIO TRIOLA
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,Triola Elementary Statistics 14e
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Chapter 1 Test
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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
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1) Determine whether the given description corresponds to an experiment or an observational study. A stock analyst
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selects a stock from a group of twenty for investment by choosing the stock with the greatest earnings per share
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reported for the last quarter.
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A) Observational study B) Experiment f f
Objective: Exam A f f
2) Identify which type of sampling is used. The name of each contestant is written on a separate card, the cards are
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placed in a bag, and three names are picked from the bag.
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A) Stratified
B) Simple Random f
C) Convenience
D) Cluster
E) Systematic
Objective: Exam A f f
3) Identify which type of sampling is used. To avoid working late, a quality control analyst simply inspects the first 100
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items produced in a day.
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A) Stratified
B) Simple Random f
C) Convenience
D) Systematic
E) Cluster
Objective: Exam A f f
4) An education expert is researching teaching methods and wishes to interview teachers from a particular school
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district. She randomly selects ten schools from the district and interviews all of the teachers at the selected schools.
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Does this sampling plan result in a random sample? Simple random sample? Explain.
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A) Yes; yes. The sample is random because all teachers have the same chance of being selected. It is a simple
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random sample because all samples have the same chance of being selected.
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B) Yes; no. The sample is random because all teachers have the same chance of being selected. It is not a simple
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random sample because some samples are not possible, such as a sample that includes teachers from schools that
f f f f f f f f f f f f f f f f f f
were not selected.
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C) No; yes. The sample is not random because teachers in small schools are more likely to be selected
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than teachers in larger schools. It is a simple random sample because all samples have the same chance of
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being selected.
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D) No; no. The sample is not random because teachers in small schools are more likely to be selected
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than teachers in larger schools. It is not a simple random sample because some samples are not possible, such as a
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sample that includes teachers from schools that were not selected.
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Objective: Exam A f f
5) Identify the type of observational study used. A town obtains current employment data by polling 10,000 of its
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citizens this month.
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1
, A) Retrospective B) Cross-sectional
f C) Prospective
f D) None of these
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Objective: Exam A
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2
, DOWNLOAD THE Test Bank for Elementary Statistics 14th Edition Triola
f f f f f f f f f
6) Determine whether the given value is a discrete or continuous variable. People are asked to state how many times in
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fthe last month they visited their family doctor.
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A) Continuous B) Discrete f
Objective: Exam A f f
7) Determine which of the four levels of measurement is most appropriate. Students' grades, A, B, or C, on a test.
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A) Nominal B) Interval C) Ratio D) Ordinal f f f
Objective: Exam A f f
8) A tax auditor selects every 1000th income tax return that is received. Identify which of these types of sampling is
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fused.
A) Stratified
B) Systematic
C) Cluster
D) Convenience
E) Simple Random f
Objective: Exam A f f
9) Determine whether the given value is a statistic or a parameter. Thirty percent of all dog owners poop scoop after their
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fdog.
A) Parameter B) Statistic f
Objective: Exam A f f
10) Determine whether the given value is from a discrete or continuous data set. The time it takes a computer to
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fcomplete a task. f f
A) Continuous B) Discrete f
Objective: Exam A f f
11) On a test, 74% of the questions are answered correctly. If 111 questions are correct, how many questions are on the test?
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A) 37 questions f B) 150 questions C) 67 questions D) 82 questions f f f f f f
Objective: Exam A f f
12) Researchers collect data by interviewing athletes who have won Olympic gold medals from 1992 to 2016. Identify the
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ftype of study. f f
A) Retrospective B) Prospective
f C) Cross-sectional
f D) None of thesef f f
Objective: Exam A f f
3
f f f f f
EDITION BY MARIO TRIOLA
f f f f
,Triola Elementary Statistics 14e
f f f
Chapter 1 Test
f f f
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
f f f f f f f f f f f f f f
1) Determine whether the given description corresponds to an experiment or an observational study. A stock analyst
f f f f f f f f f f f f f f f
selects a stock from a group of twenty for investment by choosing the stock with the greatest earnings per share
f f f f f f f f f f f f f f f f f f f f
reported for the last quarter.
f f f f f
A) Observational study B) Experiment f f
Objective: Exam A f f
2) Identify which type of sampling is used. The name of each contestant is written on a separate card, the cards are
f f f f f f f f f f f f f f f f f f f f
placed in a bag, and three names are picked from the bag.
f f f f f f f f f f f f
A) Stratified
B) Simple Random f
C) Convenience
D) Cluster
E) Systematic
Objective: Exam A f f
3) Identify which type of sampling is used. To avoid working late, a quality control analyst simply inspects the first 100
f f f f f f f f f f f f f f f f f f f
items produced in a day.
f f f f f
A) Stratified
B) Simple Random f
C) Convenience
D) Systematic
E) Cluster
Objective: Exam A f f
4) An education expert is researching teaching methods and wishes to interview teachers from a particular school
f f f f f f f f f f f f f f f
district. She randomly selects ten schools from the district and interviews all of the teachers at the selected schools.
f f f f f f f f f f f f f f f f f f f
Does this sampling plan result in a random sample? Simple random sample? Explain.
f f f f f f f f f f f f f
A) Yes; yes. The sample is random because all teachers have the same chance of being selected. It is a simple
f f f f f f f f f f f f f f f f f f f
random sample because all samples have the same chance of being selected.
f f f f f f f f f f f f
B) Yes; no. The sample is random because all teachers have the same chance of being selected. It is not a simple
f f f f f f f f f f f f f f f f f f f f
random sample because some samples are not possible, such as a sample that includes teachers from schools that
f f f f f f f f f f f f f f f f f f
were not selected.
f f f
C) No; yes. The sample is not random because teachers in small schools are more likely to be selected
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than teachers in larger schools. It is a simple random sample because all samples have the same chance of
f f f f f f f f f f f f f f f f f f f
being selected.
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D) No; no. The sample is not random because teachers in small schools are more likely to be selected
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than teachers in larger schools. It is not a simple random sample because some samples are not possible, such as a
f f f f f f f f f f f f f f f f f f f f f
sample that includes teachers from schools that were not selected.
f f f f f f f f f f
Objective: Exam A f f
5) Identify the type of observational study used. A town obtains current employment data by polling 10,000 of its
f f f f f f f f f f f f f f f f f
citizens this month.
f f f
1
, A) Retrospective B) Cross-sectional
f C) Prospective
f D) None of these
f f f
Objective: Exam A
f f
2
, DOWNLOAD THE Test Bank for Elementary Statistics 14th Edition Triola
f f f f f f f f f
6) Determine whether the given value is a discrete or continuous variable. People are asked to state how many times in
f f f f f f f f f f f f f f f f f f f
fthe last month they visited their family doctor.
f f f f f f f
A) Continuous B) Discrete f
Objective: Exam A f f
7) Determine which of the four levels of measurement is most appropriate. Students' grades, A, B, or C, on a test.
f f f f f f f f f f f f f f f f f f f
A) Nominal B) Interval C) Ratio D) Ordinal f f f
Objective: Exam A f f
8) A tax auditor selects every 1000th income tax return that is received. Identify which of these types of sampling is
f f f f f f f f f f f f f f f f f f f
fused.
A) Stratified
B) Systematic
C) Cluster
D) Convenience
E) Simple Random f
Objective: Exam A f f
9) Determine whether the given value is a statistic or a parameter. Thirty percent of all dog owners poop scoop after their
f f f f f f f f f f f f f f f f f f f f
fdog.
A) Parameter B) Statistic f
Objective: Exam A f f
10) Determine whether the given value is from a discrete or continuous data set. The time it takes a computer to
f f f f f f f f f f f f f f f f f f f
fcomplete a task. f f
A) Continuous B) Discrete f
Objective: Exam A f f
11) On a test, 74% of the questions are answered correctly. If 111 questions are correct, how many questions are on the test?
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A) 37 questions f B) 150 questions C) 67 questions D) 82 questions f f f f f f
Objective: Exam A f f
12) Researchers collect data by interviewing athletes who have won Olympic gold medals from 1992 to 2016. Identify the
f f f f f f f f f f f f f f f f f
ftype of study. f f
A) Retrospective B) Prospective
f C) Cross-sectional
f D) None of thesef f f
Objective: Exam A f f
3
