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运营管理考题目库krajewskiom9tifSuppG
Supplement
G
AcceptanceSamplingPlans
TRUE/FALSE
1.Acceptancesamplingisaninspectionprocedureusedtodeterminewhethertoacceptorrejectaspecificquantityofmaterial.
Answer:
True
Reference:
Introduction
Difficulty:
Easy
Keywords:
acceptancesampling,acceptreject
2.Asmorefirmsinitiatetotalqualitymanagementsystems,theneedforacceptancesamplingwillincrease.
Answer:
False
Reference:
Introduction
Difficulty:
Easy
Keywords:
acceptancesampling
3.Thelottoleranceproportiondefective（LTPD）isthecustomer’sdesiredlevelofquality.
Answer:
False
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
lottolerance,proportiondefective,LTPD
4.AsequentialsamplingplangenerallylowerstheANI.
Answer:
True
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
sequentialsampling,averagenumberinspected,ANI
5.Anoperatingcharacteristiccurveisaplotoftheprobabilityofacceptingthelotagainsttheproportiondefectives.
Answer:
True
Reference:
OperatingCharacteristicCurves
Difficulty:
Moderate
Keywords:
OCoperatingcharacteristic,probability,proportion
6.Thedistancebetween1.0andwheretheAQLintersectstheOCcurveisthevalueβ（Beta）.
Answer:
False
Reference:
OperatingCharacteristicCurves
Difficulty:
Moderate
Keywords:
OC,operatingcharacteristic,probability,Beta,AQL
7.
Increasingcwhileholdingnconstantdecreasestheproducer’sriskandincreasestheconsumer’srisk.
Answer:
True
Reference:
OperatingCharacteristicCurves
Difficulty:
Moderate
Keywords:
OCoperating,characteristic,producerrisk,consumerrisk
8.Ifthesamplesizeisincreasedandtheacceptancelevelisunchanged,theOCcurvewillhaveahigherconsumer’srisk.
Answer:
False
Reference:
AverageOutgoingQuality
Difficulty:
Moderate
Keywords:
samplesize,acceptancelevel,consumer’srisk,OC
9.Rectifiedinspectionoccurswhenalldefectiveitemsinthelotarereplacedwithgooditemsifthelotisrejectedandanydefectiveitemsinthesamplesarereplacedifthelotisaccepted.
Answer:
True
Reference:
AverageOutgoingQuality
Difficulty:
Moderate
Keywords:
rectifiedinspection
MULTIPLECHOICE
10.Acceptablequalitylevelcanbedefinedasthe:
a.qualityleveldesiredbytheconsumer.
b.worstqualityleveltheconsumercantolerate.
c.probabilityofrejectingagoodlot（i.e.,whenalotis,infact,acceptabletotheconsumer）.
d.probabilityofacceptingabadlot（i.e.,whenalotis,infact,notacceptabletotheconsumer）.
Answer:
a
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
AQL,acceptablequalitylevel
11.WhichofthefollowingisanexampleofatypeIerror?
a.Buyingacartonofeggsatthestoreanddiscoveringthatonewasbroken
b.Releasingaguiltydefendant
c.Returningyourcomputerforwarrantyrepairwhenthefaultwascausedbyusererror
d.Passingdefectivematerialsfromasupplierintoyourprocessestokeepyourworkersbusy
Answer:
c
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
typeIerror,producerrisk,alpha
12.
WhichofthefollowingisanexampleofatypeIIerror?
a.Convictinganinnocentdefendant
b.Returningyour“dead”stereoforwarrantyrepairwhenitsmalfunctionwascausedbyitnotbeingpluggedin
c.Haltingproductiontoadjustamachinewhenyourprocesswasactuallyincontrol
d.Eatingfoodthathasspoiled
Answer:
d
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
typeIIerror,consumerrisk,beta
13.Lottoleranceproportiondefective（LTPD）canbedefinedas:
a.thequalityleveldesiredbytheconsumer.
b.theworstqualityleveltheconsumercantolerate.
c.theprobabilityofrejectingagoodlot（i.e.,whenalotis,infact,acceptabletotheconsumer）.
d.theprobabilityofacceptingabadlot（i.e.,whenalotis,infact,notacceptabletotheconsumer）.
Answer:
b
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
LTPD,lottolerancepercentdefective
14.Asingle-samplingplanhasn=200andc=6.Asampleistakenandfiveitemsarefoundtobedefective.Whatshouldbedone?
a.Anothersampleshouldbetaken.
b.Thelotshouldberejected.
c.Thelotshouldbeaccepted.
d.Thefiveitemsshouldberepaired,andthentheentirelotshouldbeaccepted.
Answer:
c
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
singlesamplingplan
15.Adouble-samplingplanhasn1=50,n2=100,c1=2,andc2=4.Supposeonthefirstsample,onedefectiveitemwasdiscovered.Whatshouldbedone?
a.Rejecttheentirelot.
b.Takeasecondsampleof100units.
c.Accepttheentirelot.
d.Repairthedefectiveunits,andaccepttheentirelot.
Answer:
c
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
doublesamplingplan
16.
Adouble-samplingplanhasn1=50,n2=100,c1=2,andc2=4.Supposeonthefirstsample,fivedefectiveswerediscovered.Howmanytotalitemswillbeinspectedbeforeadecisionisreached?
a.50
b.100
c.150
d.Thiscannotbedeterminedwiththeinformationprovided.
Answer:
a
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
doublesamplingplan
17.Adouble-samplingplanhasn1=50,n2=100,c1=2,andc2=4.Supposethefirstsamplerevealedtwodefectives.Whatshouldbedone?
a.Rejecttheentirelot.
b.Takeasecondsamplingof100units.
c.Accepttheentirelot.
d.Repeatthetestsonthefirstsample.
Answer:
c
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
doublesamplingplan
18.WhichofthefollowingstatementsisTRUE?
a.Sequential-samplingplansarepreferredtosingle-samplingplansbecausetheaveragenumberofitemsinspectedisgenerallylower.
b.Withasequential-samplingplan,eachtimeanitemisinspected,adecisionismadetoacceptorrejectalot.
c.Withasequential-samplingplan,samplingcontinuesuntilthelotisrejected.
d.Sequential-samplingplansaredefinedbyfourparameters:
n1,n2,c1,c2.
Answer:
a
Reference:
AcceptanceSamplingPlanDecisions
Difficulty:
Moderate
Keywords:
sequentialsamplingplan
19.ForagivenAQLandLTPD,whichoneofthefollowingstatementsaboutthesingle-samplingplanisTRUE?
a.Ifcstaysconstantbutnisincreased,boththeproducer’sriskandtheconsumer’sriskwillincrease.
b.Ifcstaysconstantbutnisincreased,boththeproducer’sriskandtheconsumer’sriskwilldecrease.
c.Ifnstaysconstantbutcisincreased,theproducer’sriskwilldecreaseandtheconsumer’sriskwillincrease.
d.Ifnstaysconstantbutcisincreased,theproducer’sriskwillincreaseandtheconsumer’sriskwilldecrease.
Answer:
c
Reference:
OperatingCharacteristicsCurve
Difficulty:
Hard
Keywords:
AQL,LTPD,acceptablequalitylevel,lottolerancepercentdefective
20.
Whichoneofthefollowingwillincreasetheconsumer’srisk?
a.Decreasesamplesizeandholdconstantthenumberofdefectiveitemsinasample.
b.Decreasetheacceptablenumberofdefectiveitemsinasampleandholdconstantthesamplesize.
c.Increasethesamplesizeanddecreasetheacceptablenumberofdefectiveitemsinasample.
d.Decreasetheacceptablequalitylevelandholdconstantbothsamplesizeandtheacceptablenumberofdefectiveitemsinasample.
Answer:
a
Reference:
OperatingCharacteristicsCurve
Difficulty:
Hard
Keywords:
consumerrisk,samplesize
21.Whichoneofthefollowingalternativeswillreducetheconsumer’sriskforagivenAQLandLTPD?
a.Reducenandkeepcconstant.
b.Increasenandkeepcconstant.
c.Reducenandincreasec.
d.Increasebeta.
Answer:
b
Reference:
OperatingCharacteristicsCurve
Difficulty:
Hard
Keywords:
AQL,LTPD,acceptablequalitylevel,lottolerancepercentdefectiveconsumer’srisk
22.Whichoneofthefollowingalternativeswillreducetheproducer’sriskforagivenAQLandLTPD?
a.Reducenandkeepcconstant.
b.Increasenandkeepcconstant.
c.Increasenandreducec.
d.Increasealpha.
Answer:
a
Reference:
OperatingCharacteristicsCurve
Difficulty:
Hard
Keywords:
AQL,LTPD,acceptablequality,level,lottolerancepercentdefective,producer’srisk
23.Whichoneofthefollowingactionswilldecreasetheproducer’srisk?
a.Increasenandkeepcconstant.
b.Decreasenandkeepcconstant.
c.Keepnconstantanddecreasec.
d.Increasenanddecreasec.
Answer:
b
Reference:
OperatingCharacteristicsCurve
Difficulty:
Hard
Keywords:
producer’srisk,samplesize,acceptancenumber
24.
Themanagementofacompanywishestodevelopanewacceptancesamplingplanthatkeepsacceptablequalitylevel,lottoleranceproportiondefective,andcconstant.Ifthesamplesize（n）isincreased,comparedtothepriorplan,whichofthefollowingisTRUE?
a.αincreases
b.αdecreases
c.βincreases
d.αandβincrease
Answer:
a
Reference:
OperatingCharacteristicsCurve
Difficulty:
Hard
Keywords:
AQL,LTPD,acceptablequalitylevel,lottolerancepercentdefective
25.Theaverageoutgoingquality（AOQ）is:
a.theaveragenumberofgoodunitsproducedperhour.
b.theexpectedproportionofdefectsasamplingplanwillallow.
c.thelevelofqualitydesiredbythecustomer.
d.theworstlevelofqualitytoleratedbytheconsumer.
Answer:
b
Reference:
AverageOutgoingQuality
Difficulty:
Moderate
Keywords:
AOQ,averageoutgoingquality
26.Anitemispurchasedwithonesurfacepolishedtoaspecifiedfinishquality.Fromeachincomingshipment,asampleofitemsisrandomlyselectedandthepolishedsurfaceofeachsamplei
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