第10章假設(shè)檢驗習(xí)題

1、marketingstrictinternalcostcontrolbusinessinnovationperfmance.Increasingelectricityaccesspriceincreaseelectricitysupplyisguaranteed.In2012thecompanywithcoalinventygetrewardsofJiangsuprovincialgovernmentpowerto266millionk

2、Wh.Throughthe“small“bilateraltradeaccesstoelectricity1.695billionkWhseekingremovalcompensationwhenthepower50millionkilowatt116%marketshareinJiangsuProvincerankedfirstinthesamecapacitythesametypeunits.Companycloselytracke

3、dcoallinkagepoliciesonJuly1August20respectivelyincreaseprices2.08minutes2.5pointsprofitabilityincreasedsignificantly.公...Jobgradingremunerationoflabouragreementsintolongtermcontractwkerscompensationsystemstimulatingtheen

4、thusiasmofthestaff.Furtherstrengtheningofhumanresourcesmanagement.Fullimplementationoftheperfmanceappraisalregulationsincentiveeffect.Completethereservecadreevaluationionproduced10primaryreservecadres11secondaryreserveca

5、dres.Implementationofoperationstaffinductiongangsystem14staffpostsbepromoted.Strengtheningthecultivationofprofessionaltechnicalleadersedcoverage913factylevelprofessionaltechnicalleaders.Toenhancestaffskillstraining8staff

6、technicians.Labcontractlawcompliancecontractsofupto100%.Starteambuildingtoadvancefurther.Establisha“holdingsystemimplementationpromotingthewhole“teambuildinggoalsstrengthengroupmanagement.Teambuildingintoaperfmancereview

7、promotingtheconstructionofthestarteamdepth.Thisyearrespectively1track4teamfourstarratedfivestarbyDatangtheteam.Fourinsistson“sixculturalconstructionof“harmoniousdevelopmentreallygoodjobofpartyconstructiontheindependentCo

8、mmissionagainstcruptionstrengtheningthehumanisticcarepsychologicalcounselingtheenterprisecultureconstructiontoanewlevel.Buildingofenterprisecultureisfruitful.CompaniesadheretotheShenhualeadofcpateculturecultureofresponsi

9、bilityatthecetosafetycultureacultureoflearningethicalculturecostcultureculturesystemassistedthroughvariousculturalintegrationhasboostedbusinesscentrethisyearhaswonthe“Chineseculturalmanagementadvancedunit““NationalAdvanc

10、edUnitinthebuildingofenterprisecultureofrefmopeningup30“otherhonarytitles.Theliabilityofthecompanyculture:solvingmanagementproblemsofcpatecultureprojectwasawardedtheCECnationalelectricpowerenterprisecultureachievementawa

11、rdofexcellence.TheaccidentearlywarningpreventionsystemwasratedasChinaspowerofinnovationmanagementinnovationmanagementofelectricpowerenterpriseinJiangsuProvince.PartytheindependentCommissionagainstcruptioncontinuestostren

12、gthen.Wascarriedoutto“maintainsecurityprofitmaintainstabilitypromoteharmoniousdevelopment“asthemaincontentofthe“threeguarantees“themepracticeactivities“stressingpartyspirittoconductfexample“campaignpartyfurtherimprovemen

13、tofthelevelofwk.Staffparticipatinginthehonestcleancultureconstructionseminarsstaffssenseofprobityenhanced.Foundedbyhonestinspectsteamcomposedof12employeestobroadenthechannelsofsupervision.Adheretoestablish“fourgood“l(fā)eade

14、rshipactivitiesstaffsatisfactionrateof98%totheteam.Groupwkdynamic.PromotingtheopennessoffactyAffairsproposalfaloveletterboxtothevitalinterestsofthestaffTradeUniondelegationleadermeetingofthe26systemtodiscusssafeguardthei

15、rdemocraticrights.Improvetheganizationalstructureofthemissionthewkofstrengthening.ganizemaintenancelabemulation“healthCup“competitionenhancetheskillsofstaff.ganizedavarietyofculturalactivitiesphysicalmentalhealthcarestaf

16、ftocreateaharmoniousatmosphere.DuringtheWenchuanearthquakedonatedallthecompanyemployeestolovetosupptthedisasterareas.Thisyearthecompanyhaswonthe“Su...Cuttingcostscanbecontrolledmoneyshouldnotbewasted“managementphilosophy

17、managementanalysistoimprovemanagementqualityimprovecostcontrolcapacitymarketcompetitiveness.Innovationofsciencetechnologysciencetechnologyinnovationistoplaytheroleofsciencetechnologyastheprimaryproductivefceactiveuseofne

18、wtechnologiesnewmaterialsnewprocessesnewequipmentincreaseinvestmentinsciencetechnologystrengtheningscientifictechnologicaltrainingspeedinguptransfmingscientifictechnologicalachievementsfminganumberofproprietarytechnology

19、enhancingcecompetitiveness.Resourcesavingtheresourcessavingenterprisewastoreducecoalconsumptionwaterconsumptionelectricityattheceenhancetheoperationofleanmanagementtorealizelowconsumptionhighefficiencyreduceproductioncos

20、ts.Secondistostrengthenthebusinessfinancialmaterialinfmationtheoptimizationofganizationmanagementsavingtheinternaltransactioncosts.Harmoniousdevelopmentofharmoniousdevelopmentistoconstructa“feign“environmentfdevelopment.

21、“XING“referstothe“internalsecurityfirminternalmanagementoftheinternalmanagementmeasuresareeffectiveharmonious“.“Feigncurrency“means“Enterprisecodinatingdevelopmentofhomeopathywellgetalongwiththeneighbsbetter.“(B)XX2013fi

22、veenterprisesbuildingintrinsicsafetypowercompanygoalsare:unplannedoutage0times.Classofdisders00isequivalentfcedoutagerate.Nopersonalinjuryaccidentmaterialequipmentaccidentsdonotoccurnofirenoenvironmentalpollutionaccident

23、.Enterpriseintegratedtoachievezerocasesofviolationzeroaccidentszero.Qualitygoalis:whengeneratingcapacity≥7.5第五章假設(shè)檢驗練習(xí)第五章假設(shè)檢驗練習(xí)一、單項選擇題一、單項選擇題1將由顯著性水平所規(guī)定的拒絕域平分為兩部分，置于概率分布的兩邊，每邊占顯著性水平的二分之一，這是（b）。a.單側(cè)檢驗b.雙側(cè)檢驗c.右側(cè)檢驗d.左側(cè)檢驗2.檢驗

24、功效定義為（b）。a.原假設(shè)為真時將其接受的概率b.原假設(shè)不真時將其舍棄的概率c.原假設(shè)為真時將其舍棄的概率d.原假設(shè)不真時將其接受的概率3.符號檢驗中，（）號的個數(shù)與（）號的個數(shù)相差較遠時，意味著（c）。a.存在試驗誤差（隨機誤差）b.存在著條件誤差c.不存在什么誤差d.既有抽樣誤差，也有條件誤差4.得出兩總體的樣本數(shù)據(jù)如下：甲：8，6，10，7，8乙：5，11，6，9，7，10秩和檢驗中，秩和最大可能值是（c）。a.15b.48c.

25、45d.66二、多項選擇題二、多項選擇題1.顯著性水平與檢驗拒絕域關(guān)系（abd）a.顯著性水平提高（α變?。?，意味著拒絕域縮小b.顯著性水平降低，意味著拒絕域擴大c.顯著性水平提高，意味著拒絕域擴大d.顯著性水平降低，意味著拒絕域擴大化e.顯著性水平提高或降低，不影響拒絕域的變化marketingstrictinternalcostcontrolbusinessinnovationperfmance.Increasingelectric

26、ityaccesspriceincreaseelectricitysupplyisguaranteed.In2012thecompanywithcoalinventygetrewardsofJiangsuprovincialgovernmentpowerto266millionkWh.Throughthe“small“bilateraltradeaccesstoelectricity1.695billionkWhseekingremov

27、alcompensationwhenthepower50millionkilowatt116%marketshareinJiangsuProvincerankedfirstinthesamecapacitythesametypeunits.CompanycloselytrackedcoallinkagepoliciesonJuly1August20respectivelyincreaseprices2.08minutes2.5point

28、sprofitabilityincreasedsignificantly.公...Jobgradingremunerationoflabouragreementsintolongtermcontractwkerscompensationsystemstimulatingtheenthusiasmofthestaff.Furtherstrengtheningofhumanresourcesmanagement.Fullimplementa

29、tionoftheperfmanceappraisalregulationsincentiveeffect.Completethereservecadreevaluationionproduced10primaryreservecadres11secondaryreservecadres.Implementationofoperationstaffinductiongangsystem14staffpostsbepromoted.Str

30、engtheningthecultivationofprofessionaltechnicalleadersedcoverage913factylevelprofessionaltechnicalleaders.Toenhancestaffskillstraining8stafftechnicians.Labcontractlawcompliancecontractsofupto100%.Starteambuildingtoadvanc

31、efurther.Establisha“holdingsystemimplementationpromotingthewhole“teambuildinggoalsstrengthengroupmanagement.Teambuildingintoaperfmancereviewpromotingtheconstructionofthestarteamdepth.Thisyearrespectively1track4teamfourst

32、arratedfivestarbyDatangtheteam.Fourinsistson“sixculturalconstructionof“harmoniousdevelopmentreallygoodjobofpartyconstructiontheindependentCommissionagainstcruptionstrengtheningthehumanisticcarepsychologicalcounselingthee

33、nterprisecultureconstructiontoanewlevel.Buildingofenterprisecultureisfruitful.CompaniesadheretotheShenhualeadofcpateculturecultureofresponsibilityatthecetosafetycultureacultureoflearningethicalculturecostcultureculturesy

34、stemassistedthroughvariousculturalintegrationhasboostedbusinesscentrethisyearhaswonthe“Chineseculturalmanagementadvancedunit““NationalAdvancedUnitinthebuildingofenterprisecultureofrefmopeningup30“otherhonarytitles.Thelia

35、bilityofthecompanyculture:solvingmanagementproblemsofcpatecultureprojectwasawardedtheCECnationalelectricpowerenterprisecultureachievementawardofexcellence.TheaccidentearlywarningpreventionsystemwasratedasChinaspowerofinn

36、ovationmanagementinnovationmanagementofelectricpowerenterpriseinJiangsuProvince.PartytheindependentCommissionagainstcruptioncontinuestostrengthen.Wascarriedoutto“maintainsecurityprofitmaintainstabilitypromoteharmoniousde

37、velopment“asthemaincontentofthe“threeguarantees“themepracticeactivities“stressingpartyspirittoconductfexample“campaignpartyfurtherimprovementofthelevelofwk.Staffparticipatinginthehonestcleancultureconstructionseminarssta

38、ffssenseofprobityenhanced.Foundedbyhonestinspectsteamcomposedof12employeestobroadenthechannelsofsupervision.Adheretoestablish“fourgood“l(fā)eadershipactivitiesstaffsatisfactionrateof98%totheteam.Groupwkdynamic.Promotingtheop

39、ennessoffactyAffairsproposalfaloveletterboxtothevitalinterestsofthestaffTradeUniondelegationleadermeetingofthe26systemtodiscusssafeguardtheirdemocraticrights.Improvetheganizationalstructureofthemissionthewkofstrengthenin

40、g.ganizemaintenancelabemulation“healthCup“competitionenhancetheskillsofstaff.ganizedavarietyofculturalactivitiesphysicalmentalhealthcarestafftocreateaharmoniousatmosphere.DuringtheWenchuanearthquakedonatedallthecompanyem

41、ployeestolovetosupptthedisasterareas.Thisyearthecompanyhaswonthe“Su...Cuttingcostscanbecontrolledmoneyshouldnotbewasted“managementphilosophymanagementanalysistoimprovemanagementqualityimprovecostcontrolcapacitymarketcomp

42、etitiveness.Innovationofsciencetechnologysciencetechnologyinnovationistoplaytheroleofsciencetechnologyastheprimaryproductivefceactiveuseofnewtechnologiesnewmaterialsnewprocessesnewequipmentincreaseinvestmentinsciencetech

43、nologystrengtheningscientifictechnologicaltrainingspeedinguptransfmingscientifictechnologicalachievementsfminganumberofproprietarytechnologyenhancingcecompetitiveness.Resourcesavingtheresourcessavingenterprisewastoreduce

44、coalconsumptionwaterconsumptionelectricityattheceenhancetheoperationofleanmanagementtorealizelowconsumptionhighefficiencyreduceproductioncosts.Secondistostrengthenthebusinessfinancialmaterialinfmationtheoptimizationofgan

45、izationmanagementsavingtheinternaltransactioncosts.Harmoniousdevelopmentofharmoniousdevelopmentistoconstructa“feign“environmentfdevelopment.“XING“referstothe“internalsecurityfirminternalmanagementoftheinternalmanagementm

46、easuresareeffectiveharmonious“.“Feigncurrency“means“Enterprisecodinatingdevelopmentofhomeopathywellgetalongwiththeneighbsbetter.“(B)XX2013fiveenterprisesbuildingintrinsicsafetypowercompanygoalsare:unplannedoutage0times.C

47、lassofdisders00isequivalentfcedoutagerate.Nopersonalinjuryaccidentmaterialequipmentaccidentsdonotoccurnofirenoenvironmentalpollutionaccident.Enterpriseintegratedtoachievezerocasesofviolationzeroaccidentszero.Qualitygoali

48、s:whengeneratingcapacity≥7.5128解：假設(shè)檢驗為（使用壽命有無顯10000:10000:0100????HH著增加，應(yīng)該使用右側(cè)檢驗）。n=100可近似采用正態(tài)分布的檢驗統(tǒng)計量。查出＝0.01水平下的反查正態(tài)概率表得到臨界值2.32到nxz0?????2.34之間（因為表中給出的是雙側(cè)檢驗的接受域臨界值，因此本題的單側(cè)檢驗顯著性水平應(yīng)先乘以2，再查到對應(yīng)的臨界值）。計算統(tǒng)計量值。因為z=32.34(2.32)

49、，所以拒絕原假設(shè)，無故31005001000010150???z障時間有顯著增加。3回顧本章開頭的案例，醫(yī)院從2008年元旦出生的新生兒中隨機抽取了50名，測量他們的平均體重為3300克，而2007年元旦時抽取的50名新生兒的平均體重是3200克?，F(xiàn)假設(shè)根據(jù)以住的調(diào)查，新生兒體重的標準差是65克。試問：（1）以0.05的顯著性水平，檢驗新生兒體重在這兩年中是否有顯著的變化？（2）計算檢驗的p值，并根據(jù)p值重新檢驗（1）中的結(jié)論。解：（1