MULTIPLECHOICEQUESTIONS英文考试题含

MULTIPLECHOICEQUESTIONS英文考试题含答案MULTIPLECHOICEQUESTIONS英文考试题含答案MULTIPLECHOICEQUESTIONS英文考试题含答案EvaluationOnly.CreatedwithAspose.PDF.Copyright2002-2020AsposePtyLtd.CHAPTER1WHATISSTATISTICS?SECTIONS1-4MULTIPLECHOICEQUESTIONSInthefollowingmultiple-choicequestions,pleasecirclethecorrectanswer.Youaskedfiveofyourclassmatesabouttheirheight.Onthebasisofthisinformation,

youstatedthattheaverageheightofallstudentsinyouruniversityorcollegeis65inches.Thisisanexampleof:

a.descriptivestatistics

b.statisticalinference

c.parameterd.populationANSWER:bAcompanyhasdevelopedanewcomputersoundcard,buttheaveragelifetimeisunknown.Inordertoestimatethisaverage,200soundcardsarerandomlyselectedfromalargeproductionlineandtestedandtheaveragelifetimeisfoundtobe5years.The200soundcardsrepresentthe:

a.parameterb.statisticc.sampled.populationANSWER:c1EvaluationOnly.CreatedwithAspose.PDF.Copyright2002-2020AsposePtyLtd.2ChapterOneAsummarymeasurethatiscomputedfromasampletodescribeacharacteristicofthepopulationiscalleda

a.parameterb.statisticc.population

d.sampleANSWER:bAsummarymeasurethatiscomputedfromapopulationiscalledaa.parameter

b.statisticc.population

d.sampleANSWER:aWhendataarecollectedinastatisticalstudyforonlyaportionorsubsetofallelementsofinterest,weareusinga:

a.sampleb.parameter

c.population

d.statisticANSWER:aWhichofthefollowingisnotthegoalofdescriptivestatistics?a.Summarizingdatab.Displayingaspectsofthecollecteddata

c.Reportingnumericalfindings

d.Estimatingcharacteristicsofthepopulation

ANSWER:dWhichofthefollowingstatementsisnottrue?a.Oneformofdescriptivestatisticsusesgraphicaltechniques

b.Oneformofdescriptivestatisticsusesnumericaltechniques

c.Inthelanguageofstatistics,populationreferstoagroupofpeople

d.Statisticalinferenceisusedtodrawconclusionsorinferencesaboutcharacteristicsof

populationsbasedonsampledataANSWER:cDescriptivestatisticsdealswithmethodsof:anizingdatab.summarizingdatac.presentingdatainaconvenientandinformativeway

d.AlloftheaboveANSWER:dEvaluationOnly.CreatedwithAspose.PDF.Copyright2002-2020AsposePtyLtd.WhatIsStatistics?3Apoliticianwhoisrunningfortheofficeofgovernorofastatewith4millionregisteredvoterscommissionsasurvey.Inthesurvey,54%ofthe5,000registeredvoters

interviewedsaytheyplantovoteforher.Thepopulationofinterestisthe:

a.4millionregisteredvotersinthestateb.5,000registeredvotersinterviewedc.2,700votersinterviewedwhoplantovoteforher.

d.2,300votersinterviewedwhoplannottovoteforher

ANSWER:aAcompanyhasdevelopedanewbattery,buttheaveragelifetimeisunknown.Inordertoestimatethisaverage,asampleof500batteriesistestedandtheaveragelifetimeofthissampleisfoundtobe225hours.The225hoursisthevalueofa:a.parameter

b.statisticc.sampled.populationANSWER:bTheprocessofusingsamplestatisticstodrawconclusionsabouttruepopulation

parametersiscalleda.inferentialstatistics

b.thescientificmethod

c.samplingmethod

d.descriptivestatistics

ANSWER:aWhichofthefollowingismostlikelyapopulationasopposedtoasample?a.Respondentstoamagazinesurvey

b.Thefirst10studentscompletingafinalexam

c.Everyfifthstudenttoarriveatthebookstoreonyourcampus

d.RegisteredvotersintheStateofMichigan

ANSWER:dthattheaveragenumberofcreditsearnedpersemesterbycollege

studentsisrising.AresearcheratMichiganStateUniversity(MSU)wishedtoestimatethenumberofcreditsearnedbystudentsduringthefallsemesterof2003atMSU.Todo

so,herandomlyselects500studenttranscriptsandrecordsthenumberofcreditseach

studentearnedinthefallterm2003.Hefoundthattheaveragenumberofsemester

creditscompletedwascreditsperstudent.Thepopulationofinteresttothe

researcherisa.allMSUstudentsb.allcollegestudentsinMichiganc.allMSUstudentsenrolledinthefallsemesterof2003

d.allcollegestudentsinMichiganenrolledinthefallsemesterof2003

ANSWER:cEvaluationOnly.CreatedwithAspose.PDF.Copyright2002-2020AsposePtyLtd.4ChapterOneThecollectionandsummarizationofthegraduatedegreesandresearchareasofinterestofthefacultyintheUniversityofMichiganofaparticularacademicinstitutionisanexampleofa.inferentialstatistics

b.descriptivestatistics

c.aparameterd.astatisticANSWER:bThosemethodsinvolvingthecollection,presentation,andcharacterizationofasetofdata

inordertoproperlydescribethevariousfeaturesofthatsetofdataarecalleda.inferentialstatistics

b.thescientificmethod

c.samplingmethod

d.descriptivestatistics

ANSWER:dWhichofthefollowingismostlikelyaparameterasopposedtoastatistic?a.Theaveragescoreofthefirsttenstudentscompletinganassignment

b.TheproportionoffemalesregisteredtovoteinKentCounty,Michigan

c.Theaverageheightof100studentsrandomlyselectedfromacommunitycollege

d.TheproportionofcarsstoppedyesterdayonUS131thatwerecitedforspeeding

ANSWER:bAstudyisunderwayinanationalforesttodeterminetheadultheightofpinetrees.Specifically,thestudyisattemptingtodeterminewhatfactorsaidatreeinreaching

heightsgreaterthan50feettall.Itisestimatedthattheforestcontains32,000pinetrees.

Thestudyinvolvescollectingheightsfrom500randomlyselectedadultpinetreesand

analyzingtheresults.Thesampleinthestudyisa.the500randomlyselectedadultpinetreesb.the32,000adultpinetreesintheforestc.alltheadultpinetreesta