TEST BANK
STATISTICAL REASONING
FOR EVERYDAY LIFE
FIFTH EDITION
Jeffrey Bennett
University of Colorado at Boulder
William L. Briggs
University of Colorado at Denver
Mario F. Triola
Dutchess Community College
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development, research, and testing of the theories and programs to determine their effectiveness. The author and
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damages in connection with, or arising out of, the furnishing, performance, or use of these programs.
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Copyright © 2018, 2014 Pearson Education, Inc.
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ISBN-13: 978-0-13-445697-3
ISBN-10: 0-13-445697-1
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,Contents
Chapter 1 Speaking of Statistics ...................................................................................... 1
Chapter 2 Measurement in Statistics ............................................................................. 13
Chapter 3 Visual Displays of Data ................................................................................ 21
Chapter 4 Describing Data............................................................................................. 44
Chapter 5 A Normal World ........................................................................................... 63
Chapter 6 Probability in Statistics ................................................................................. 71
Chapter 7 Correlation and Causality.............................................................................. 83
Chapter 8 Inferences from Samples to Populations ..................................................... 100
Chapter 9 Hypothesis Testing...................................................................................... 108
Chapter 10 t Tests, Two-Way Tables, and ANOVA ................................................... 123
Answers ........................................................................................................................... 135
iii
, Statistical zReasoning zfor zEveryday zLife
Chapter z1 z(Speaking zof zStatistics) zExam, zform zA
MULTIPLE zCHOICE. zChoose zthe zone zalternative zthat zbest zcompletes zthe zstatement
zor zanswers zthe zquestion.
For zproblems z1 zand z2, zdetermine zwhether zthe zevaluated zgroup zis za zpopulation zor za zsample.
1) The zaverage z(mean) zage zof zall z63 zAssociate zProfessors zat zCliffton zUniversity zis z47 zyears.
A) Population B) zSample
2) A zresearcher zexamines zthe zproperty ztax zrecords zof z84 zproperty zowners zin zone zcity zand zfinds
zthat z17% zare zbehind zin ztheir ztax zpayments.
A) Population B) zSample
For zproblems z3 zand z4, zdetermine zwhether zthe zgiven zvalue zis za zstatistic zor za zparameter.
3) The zaverage z(mean) zage zof zall z63 zAssociate zProfessors zat zCliffton zUniversity zis z47 zyears.
A) Statistic B) zParameter
4) A zresearcher zexamines zthe zproperty ztax zrecords zof z84 zproperty zowners zin zone zcity zand zfinds
zthat z17% zare zbehind zin ztheir ztax zpayments.
A) Statistic B) zParameter
5) Following zthe zRepublican zNational zConvention, za zpoll zof z600 zvoters zin za zcentral zIllinois
zcommunity zshowed zthat z57% zexpected zthe zRepublican zticket zto zwin zover zthe zDemocrat zticket
zno zmatter zwhom zthe zDemocrats zchose zfor zvice-president. zThe zmargin zof zerror zwas z4
zpercentage zpoints. zThere zare z25,000 zregistered zvoters zin zthe zcommunity. zWhich zrange zof
zvalues zis zlikely zto zcontain zthe zpopulation zparameter?
A) 13,250 zto z15,250 B) z24,400 zto z25,600
C) z318 zto z366 D) z53% zto z61%
6) A zpoll zof z488 zcitizens zof zNormal, zIllinois, zshowed zthat z65% zfavored zstrict zenforcement zof
zspeed zlimits zwith za zmargin zof zerror zof z4%. zA zsecond zpoll zof z495 zcitizens zof zthe zsame ztown
zshowed zthat z34% zfavored zstrict zenforcement zof zspeed zlimits. zAssuming zthat zproper zsampling
ztechniques zwere zused zin zboth zpolls, zone zmay zconclude zthat
A) the zpercent zof zthe zpopulation zthat zfavors zstrict zenforcement zof zspeed zlimits zis z49.5% z z8%.
B) the zpercent zof zthe zpopulation zthat zfavors zstrict zenforcement zof zspeed zlimits zis z49.5% z z4%.
C) one zor zboth zof zthe zsamples zmay zhave zbeen zunlikely zsamples zfrom zthe zpopulation.
D) the zpercent zof zthe zpopulation zthat zfavors zstrict zenforcement zof zspeed zlimits zis z65% z z8%.
7) A zpoll zof z700 zattendees zof zthe zTaste zof zChicago zshowed zthat z445 zattendees, z65% zof zthe
zsample, zbelieved zthat zthe zfood zwas zoverpriced. zIt zis zestimated zthat z1,250,000 zpeople zattend zthe
zTaste. zAlthough z65% zplus zor zminus z5% zof zattendees zbelieve zthat zthe zfood zis zoverpriced, zthe
zTaste zis za zpopular zevent. zThe zraw zdata zof zthe zstudy zis z(are)
A) 65% zof zthe zsample.
B) 700 zattendees, z455 zattendees.
C) 1,250,000 zattendees, z700 zattendees, z455 zattendees.
D) (60%, z70%)
8) A zstudent zwanted zto zknow zthe zfavorite zlunch zat za zlarge zhigh zschool zwith za zclosed zcampus.
zWhat zis zthe zfirst zstep zin zconducting za zstatistical zstudy zto zanswer zthe zquestion?
A) Select za zrandom zsample zof zstudents.
B) Precisely zstate zthe zgoal zof zthe zstudy.
C) Select za zrandom zsample zof zstudents zand zteachers.
D) Select za zrandom zsample zof zteachers.
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