Test Bank for Statistical Reasoning for Everyday Life, 5th edition by Jeff Bennett, William Briggs, Mario Triola

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TEST BANK
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STATISTICAL REASONING FOR B B




BEVERYDAY LIFE B




FIFTHEDITION B




JeffreyBennett b




University of Colorado at Boulder
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WilliamL.Briggs b b




University of Colorado at Denver
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Mario F.Triola b b




Dutchess Community College
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,The author and publisher have used their best efforts in preparing this supplement. These efforts include the development,
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research, and testing of the theories and programs to determine their effectiveness. The author and publisher make no
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warranty of any kind, expressed or implied, with regard to these programs or the documentation contained in this book. The
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author and publisher shall not be liable in any event for incidental or consequential damages in connection with, or arising
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out of, the furnishing, performance, or use of these programs.
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Provided by Pearson from electronic files supplied by the author. Copyright
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© 2018, 2014 Pearson Education, Inc.
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Publishing as Pearson, 501 Boylston Street, Boston, MA 02116.
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All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form
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or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of
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the publisher. Printed in the United States of America.
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ISBN-13: 978-0-13-445697-3 b




ISBN-10: 0-13-445697-1 b




www.pearsonhighered.com

,Contents


Chapter 1 b Speaking of Statistics ....................................................................................... 1
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Chapter 2 b Measurement in Statistics .............................................................................. 13
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Chapter 3 b Visual Displays of Data .................................................................................. 21
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Chapter 4 b Describing Data ............................................................................................. 44
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Chapter 5 b A Normal World ............................................................................................ 63
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Chapter 6 b Probability in Statistics .................................................................................. 71
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Chapter 7 b Correlation and Causality............................................................................... 83
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Chapter 8 b Inferences from Samples to Populations ....................................................... 100
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Chapter 9 b Hypothesis Testing ...................................................................................... 108
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Chapter 10 b t Tests, Two-Way Tables, and ANOVA...................................................... 123
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Answers ........................................................................................................................... 135




iii

, Statistical Reasoning for Everyday Life
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Chapter 1 (Speaking of Statistics) Exam, form A
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MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
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answers the question.
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For problems 1 and 2, determine whether the evaluated group is a population or a sample.
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1) The average (mean) age of all 63 Associate Professors at Cliffton University is 47 years.
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A) Population B) Sample b




2) A researcher examines the property tax records of 84 property owners in one city and finds that 17% are
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behind in their tax payments.
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A) Population B) Sample b




For problems 3 and 4, determine whether the given value is a statistic or a parameter.
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3) The average (mean) age of all 63 Associate Professors at Cliffton University is 47 years.
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A) Statistic B) Parameter b




4) A researcher examines the property tax records of 84 property owners in one city and finds that 17% are
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behind in their tax payments.
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A) Statistic B) Parameter b




5) Following the Republican National Convention, a poll of 600 voters in a central Illinois community
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showed that 57% expected the Republican ticket to win over the Democrat ticket no matter whom the
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Democrats chose for vice-president. The margin of error was 4 percentage points. There are 25,000
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registered voters in the community. Which range of values is likely to contain the population parameter?
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A) 13,250 to 15,250 B) 24,400 to 25,600 b b b b b




C) 318 to 366 b D) 53% to 61% b b b b b




6) A poll of 488 citizens of Normal, Illinois, showed that 65% favored strict enforcement of speed limits with
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a margin of error of 4%. A second poll of 495 citizens of the same town showed that 34% favored strict
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enforcement of speed limits. Assuming that proper sampling techniques were used in both polls, one may
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conclude that
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A) the percent of the population that favors strict enforcement of speed limits is 49.5%  8%.
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B) the percent of the population that favors strict enforcement of speed limits is 49.5%  4%.
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C) one or both of the samples may have been unlikely samples from the population.
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D) the percent of the population that favors strict enforcement of speed limits is 65%  8%.
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7) A poll of 700 attendees of the Taste of Chicago showed that 445 attendees, 65% of the sample, believed
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that the food was overpriced. It is estimated that 1,250,000 people attend the Taste. Although 65% plus or
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minus 5% of attendees believe that the food is overpriced, the Taste is a popular event. The raw data of the
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study is (are)
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A) 65% of the sample. b b b




B) 700 attendees, 455 attendees. b b b




C) 1,250,000 attendees, 700 attendees, 455 attendees. b b b b b




D) (60%, 70%) b




8) A student wanted to know the favorite lunch at a large high school with a closed campus. What is the first
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step in conducting a statistical study to answer the question?
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A) Select a random sample of students. b b b b b




B) Precisely state the goal of the study. b b b b b b




C) Select a random sample of students and teachers. b b b b b b b




D) Select a random sample of teachers. b b b b b




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