計算機學習通課后章節(jié)答案期末考試題庫2023年

計算機學習通課后章節(jié)答案期末考試題庫2023年Whichofthefollowingisbasedontheprincipleoffreeassociation?()

參考答案:

Sentencecompletionmethod

Whichofthefollowingmetricisusedfortheevaluationofadvertisingappeal?()

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Stickiness

Datafromapreviouswarrantycardstudyshowwhereconsumersprefertopurchasetheproduct,butprovidenoreasons.Thissituationshowsinadequacyofsecondaryinformationintermsof:()

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lackofinformation.

Identifyingconsumptionpatternisanexampleof:()

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Factfinding

Thecriticalprobabilityofchoosingbetweenthenullhypothesisandthealternativehypothesisiscalledthe:()

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significancelevel.

Whichofthefollowingisaformofanalysisthatinterpretsnaturallanguagestories?()

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Narrativeanalysis

Whichtypeofresearchisconductedtodeterminetheeffectiveretailsiteorwarehouselocationforselling?()

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Distributionresearch

Zarafashionclothingisexploringwhethertheproductscanbemarketedthroughonlineretailers,itisanexampleofwhichtypeofresearch?()

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Distributionresearch

Whichtypeofqualitativeorientationwouldbeparticularlyusefulforstudyinghighlydynamicsituationsinvolvingrapid,significantchanges?()

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Groundedtheory

Theselectionofabasicresearchdesigncoversall,except:()

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Canahypothesisbeformulated?

Allofthefollowingdescriptivestatisticsareappropriatemeasuresforordinal-scaleditems,except:()

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mean.

Whichofthefollowingisnotafocusofqualitativeresearch?()

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Toproducegeneralisablefindingsaboutthephenomenaofinterest

AtelephoneinterviewercallsaNetflixsubscriberandaskshimorhertoviewanewshowatacertaintime.Anappointmentismadetointerviewtherespondentshortlyaftertheshowisaired.Thisisanexampleofa(n):()

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mixed-modesurvey.

TheCancerCouncilobservesthesalesandbrandshareofsunscreenovera12-monthperiod.Thisisanexampleof:()

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trendanalysis.

Aresearcherposingquestionsaboutinformationprovidedfromhistoricalrecordsinordertoderiveadeeperunderstandingisanexampleofwhichofthefollowing?()

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Groundedtheory

Whichtypeofresponsebiasislikelytooccurwhenrespondentsareinterviewedbyorganisationsthattheyholdinhighesteem?()

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Auspicesbias

Supposethat,fromasamplingframeof240customers,aresearcherwantstoselect40customerswhohavepurchasedatleast$10000worthofproductsfromhiscompanywithinthepastsixmonths.Usingasystematicsamplingtechnique,andafterarandomstart,theresearchershouldselectevery______nameonthelist.()

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sixth

Whichofthefollowingdonotinfluencesamplesize?()

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Populationsize

Whichtypeofratingscaleisthefollowing?()Nowthatyouhavedrivenyour2013Mazda3forsixmonths,tellushowsatisfiedyouarewiththecar'soverallperformance.VeryVerysatisfied7654321dissatisfied

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Monadicrating

Inafocusgroupdiscussion,recordingthesessionfordetailedexaminationlaterisaformof:()

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scrutiny

Allofthefollowingarereasonswemightchooseaqualitativeresearchmethod,except:()

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tolearnthestrengthofarelationship.

Ifsubjectsintheexperimentalgrouparealwaysadministeredthetreatmentintheafternoonandsubjectsinthecontrolgrouparealwaysadministeredthetreatmentinthemorning,thenthestudyissaidtoexperience:()

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constanterror.

Woolworthsisplanningtoredesignthestorelayoutoftheirsupermarketstomaximisecustomerflowandtheexposureofimpulsegoods.WhichofthefollowingresearchmethodswouldbemostusefultohelpWoolworthsgatherthedatarequiredfordecision-making?()

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Observation

Tomeasurethepurchaseintentionisa:()

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researchobjective

Thecriterionusedforevaluatingmeasurementsincludesallofthefollowing,except:()

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divisibility.

Whenconductingsecondaryresearch,theresearcheraccessesafederalgovernmentreportavailablefromanonlinedatabase.Thisisasourceof:()

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externaldata.

Whichofthefollowingresearchapproachesismostusefultohelpingtounderstandhowtoddlersobtainvaluefromtheirexperienceswithtoys?()

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Ethnography

Whendeterminingsamplesize,theprecisionleveloftheestimateisindicatedbythe:()

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confidenceinterval.

Whichofthefollowingisnotconductedordevelopedbeforethesurvey?()

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Screening

Theprocessofaskinggeneralquestionsbeforeaskingaboutspecificissuesinordertoelicitunbiasedresponsesisknownasthe:()

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funneltechnique.

Whentheresearchercodingqualitativedataislookingforcausalorlogicallinksbetweenterms,theyareusingacodingstrategyknownas:()

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connectors.

MarschocolatecompanywantstounderstandhowthenewmintflavorofMarsisperformingincomparisontocompetitors’brands,isanexampleofwhichtypeofresearch?()

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Productresearch

Whichofthefollowingsamplingmethodsisbestforreaching‘hidden’orrarepopulations?()

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Respondent-drivensampling

Whichexperimentaldesignismostappropriatetoanswerthequestion,‘Whatistheeffectofvaryingtheheightofthedisplayfromthefloor?’()

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Factorialdesign

Insystematicsampling,theselectionofeverynthnumberonthelistisknownasthe:()

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samplinginterval.

Inwhichstageofresearchmanagementseekstoidentifyaclearcutstatementofopportunity?()

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problemdefinitionstage

Forat-test,thedegreesoffreedomarederivedby:()

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n–1

Whichofthefollowingattemptstounderstandactualuserattitude,usingtheirownlanguage,andsourcedatafromplaceswhereconsumersfeelcomfortablesharing.()

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Sentimentanalysis

Parametricstatisticaltestsarebasedontheassumptionthatthedataisdrawnfromapopulationwitha(n)______samplingdistribution.()

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normal

Whichofthefollowingnon-probabilitysampleisextensivelyusedforresearchwithverylowcost?()

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Conveniencesampling

Atabulationoftheresultsofapretesttohelpdeterminewhetherthequestionnairewillmeettheresearchobjectivesisknownasa(n):()

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preliminarytabulation.

Aresearcheraskingarespondent‘Canyougivemeanexampleofthat?’isanexampleofwhichtypeofquestion?()

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Probing

WhenaresearchercountsthepercentageofwomenwhohaveappearedonthecoverofTimemagazineduringthepastdecade,itisanexampleofwhichtypeofobservation?()

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Contentanalysis

Whichofthefollowingstatementsistrue?()

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Observingbehaviourpatternsoveraperiodoftimecanbecostlyanddifficult.

Theprocessofchangingdatafromitsoriginalformtoaformatsuitabletoachievetheresearchobjectiveisknownas:()

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datatransformation.

Whatdegreeofdurabilitydoyoupreferinyourpoint-of-purchaseadvertising?()Theabovequestionisflawedbecauseitis:

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ambiguous.

Whichofthefollowingscaleiseasiertoadminister,especiallyoverthetelephone?()

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Stapelscale

Theresearcher'sunprovenpropositioniscalleda(n):()

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researchhypothesis.

Abiasthatoccursbecausepeoplewhofeelstronglyaboutasubjectaremorelikelytorespondtosurveyquestionsthanpeoplewhofeelindifferentaboutitisreferredtoas:()

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self-selectionbias.

Whichofthefollowingiscalculatedtobeassquarerootofstandarddeviation:()

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variance.

Supposethataresearcherpresentsadescriptionofashoppinglisttoarespondentandasksforacharacterisationofthepurchaser.Thisisanexampleofa(n):()

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third-persontechnique.

Allofthefollowingphenomenoncanbeobserved,except:()

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behaviouralintention.

Datacleaningoccursatwhichstageofthedataanalysisprocess?()

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Datacoding

Ifresearcherswishtocomparefourbrandsoftoothpasteonthebasisoftasteandfreshness,howmanycomparisonsarerequiredinapairedcomparisonmeasurement?()

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Six

meansidentifyingthenatureofthedefectivedata.()

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diagnosis

Toinvestigatewhetherattitudestowardsimportedcarsareinfluencedbyprice,attitudestowardsimportedcarsshouldbesetasthe___________variableandpriceasthe___________variable.()

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dependent;independent

Whichofthefollowingisnotameasureofdispersion?()

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Mode

Whichofthefollowingisnotanadvantageofsecondarydata?()

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Itmeetstheresearcher’sneeds.

Inpoliticalelectionsforcandidateswhoarenotwellknownbymanyvoters,suchasjudges,itfrequentlyhappensthatthecandidatewhoislistedfirstontheballotreceivesthemostvotes.Thisisanexampleofa(n):()

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orderbias.

Whichofthefollowingtypesofscalesistheeasiesttoconstruct?()

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Likertscale

Acriterionvariabletobepredictedisknownasthe:()

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dependentvariable

Whichtypeofresponsebiasislikelytooccurwhenaninterviewertriestosavetimebyshorteningthequestionsposedtorespondents?()

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Interviewerbias

_________occurswhenrespondentsbelievethateventsinthepasthappenedmorerecentlythantheyactuallydid.()

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Telescoping

Thestandardisednormaldistribution:()

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hasameanofzeroandastandarddeviationofone.

Codesthatareestablishedbeforeexaminingthedataareknownas:()

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Aprioricodes

Whichofthefollowingisnotanadvantageoffocusgroupinterviews?()

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Theycancoversensitivetopics.

Whichofthefollowingstatementsaboutrepeatedmeasuresdesignsisnottrue?()

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Theyarelessrealisticwhencomparedtootherexperimentaldesigns.

Ifaseven-pointscaleforvariable1(VAR1)istoberecoded,whichofthefollowingprogrammingstatementmightbeusedtosubtracttheoriginalcodefromscore8?()

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NEWVAR1=8–VAR1

Typically,acreditcardcompanywilluseinformationaboutacustomer'sage,gender,incomeandpastcredithistorytoassesshisorhercreditrisk.Thisisanexampleof:()

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customerdiscovery.

Whichofthefollowingstatementsaboutself-administeredquestionnairesisnottrue?()

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Theyrelyontheskillsoftheinterviewer.

Supposeyouwishtotestwhethermeanattitudestowardsanadvertisementarehigherthansomesetvalue(forexample,4)ona7-pointscale.Thenullhypothesisshouldbewrittenas:()

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Ho:μ=4.

Inafocusgroupanindividualusuallycanfindsomecomfortinthefactthathisorherfeelingsaresimilartothoseofothersinthegroup.Thisiscalled:()

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security.

Aresearchonconsumers’tastepreferenceisclassifiedunderwhichtypeofresearch?()

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Productresearch

Whichexperimentaldesignhasthefollowingsymbols?()Experimentalgroup:RXO1Controlgroup:RO2

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Posttest-onlycontrolgroupdesign

Inwhichtypeoftestmarketingsituationdoesacompanyuseitsownsalesforcetotrytoobtaindistributionoftheproduct?()

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Standard

Beyoncétestssongsforhernewalbumanonymouslyinanightclubtoobservehowpeopledancetoeachsong.Whattypeofexperimentisthis?()

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Fieldexperiment

Supposethatagroupof100consumersareaskedtoratehowmuchtheylikedthetasteofanewsoftdrinkona5-pointscale(where5=goodtasteand1=poortaste).Themeanratingwas4.6,withastandarddeviationof1.25.Suppose,further,thatthestandarderrorofthemeanforthisstudywas0.15.Ifyouwantedtofindthe95percentconfidenceinterval(two-tailedtest),andiftheZ-valueatthe.05levelofsignificanceis1.96,thentheconfidenceintervalliesbetweenapproximately:()

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4.31and4.89.

‘Somepeoplehavethetimetobrushthreetimesdaily;othersdonot.Howoftendidyoubrushyourteethyesterday?’Thestatementthatprecedesthequestionisknownasa(n):()

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counterbiasingstatement.

Theerrorcausedbyrejectingthenullhypothesiswhenitis,infact,trueiscalleda:()

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TypeIerror.

Ofthefollowingcriteriapresentedbelow,whichoneshouldberegardedastheresearcher’sinitialcriterionwhenevaluatingsecondarydata?()

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Dothedatahelptoanswerquestionssetoutintheproblemdefinition?

Asupermarketchainmineditsdatabases(providedbycheckoutscanners)andfoundthatwhenmengotoitsstorestobuynappiesbetween6p.m.and8p.m.,theysometimesbuyasix-packofbeeraswell.Thisbehaviouralpatternrevelationislikelytobederivedfrom:()

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marketbasketanalysis.

Acodebookidentifiesall,except:()

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missingvalue

Whichofthefollowingisnottrueaboutin-depthinterview?()

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Itislessexpensive

Inafocusgroupdiscussion,thegroupproducesawiderrangeofinformationthanwouldbepossibleifeachmemberprovidedinformationbyhim-orherself.Thisiscalled:()

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Synergy

Doyouownamobilephone?_Yes_No?Theaboveisanexampleofwhichtypeofquestion?()

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Simple-dichotomy

Whichofthefollowingisaboutphysicallyhandlingthetextsuchasusingeyeballing?()

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pawing

Whichofthefollowingisnottrueforqualitativeresearch?()

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Qualitativeresearchhasspecificresearchquestions

Thecomparisonofdatabetweenmultiplesourcestoensureconsistencyisknownasdata:()

參考答案:

cleaning.

Researchconductedtoexpandthelimitsofknowledgeis