阳痿自我治疗方法李可论扶阳问题（风课件

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1、OperationsManagementSupplement6–StatisticalProcessControl©2006PrenticeHall,Inc.PowerPointpresentationtoaccompanyHeizer/RenderPrinciplesofOperationsManagement,6eOperationsManagement,8eOutlineStatisticalProcessControl(SPC)ControlChartsforVariablesTheCentralLimitTheoremSettingM

2、eanChartLimits(x-Charts)SettingRangeChartLimits(R-Charts)UsingMeanandRangeChartsControlChartsforAttributesManagerialIssuesandControlChartsOutline–ContinuedProcessCapabilityProcessCapabilityRatio(Cp)ProcessCapabilityIndex(Cpk)AcceptanceSamplingOperatingCharacteristicCurveAvera

3、geOutgoingQualityLearningObjectivesWhenyoucompletethissupplement,youshouldbeableto:IdentifyorDefine:NaturalandassignablecausesofvariationCentrallimittheoremAttributeandvariableinspectionProcesscontrolx-chartsandR-chartsLearningObjectivesWhenyoucompletethissupplement,youshould

4、beableto:IdentifyorDefine:LCLandUCLP-chartsandc-chartsCpandCpkAcceptancesamplingOCcurveLearningObjectivesWhenyoucompletethissupplement,youshouldbeableto:IdentifyorDefine:AQLandLTPDAOQProducer’sandconsumer’sriskLearningObjectivesWhenyoucompletethissupplement,youshouldbeableto:

5、DescribeorExplain:TheroleofstatisticalqualitycontrolVariabilityisinherentineveryprocessNaturalorcommoncausesSpecialorassignablecausesProvidesastatisticalsignalwhenassignablecausesarepresentDetectandeliminateassignablecausesofvariationStatisticalProcessControl(SPC)NaturalVaria

6、tionsAlsocalledcommoncausesAffectvirtuallyallproductionprocessesExpectedamountofvariationOutputmeasuresfollowaprobabilitydistributionForanydistributionthereisameasureofcentraltendencyanddispersionIfthedistributionofoutputsfallswithinacceptablelimits,theprocessissaidtobe“incon

7、trol”AssignableVariationsAlsocalledspecialcausesofvariationGenerallythisissomechangeintheprocessVariationsthatcanbetracedtoaspecificreasonTheobjectiveistodiscoverwhenassignablecausesarepresentEliminatethebadcausesIncorporatethegoodcausesSamplesTomeasuretheprocess,wetakesample

8、sandanalyzethesamplestatisticsfollowingthesesteps(a)Samplesoftheprod