[].总体方差的假设检验

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1、§3检验母体方差3.1检验正态母体的方差——检验母体，均未知，试对与有无显著差异作假设检验.①在母体上作假设②检验统计量③给定显著水平，如图存在和，使故取拒绝域insulatingpropertiesofair...GB/T9966.3-2001testmethodsfornaturalfacingstonespart4:wearresistancetestmethodforGB/T9966.4-2001testmethodsfornaturalfacingstones5thpart:testmethodforscleroscopehardness

2、GB/T9966.5-2001testmethodsfornaturalfacingstones6thpart:testmethodforacidresistanceGB/T9966.6-2001testmethodsfornaturalfacingstonetestmethodsfornaturalfacingstones8thpart:byuniformstaticpressuredifferenceteststonemountedStructurestrengthtestmethodofGB/T9966.8-200113,sealanttec

3、hnicalstandardsofarchitecturalcurtainwallconstructionwithSiliconsealantsiliconebuildingsealantGB/T14683-2003GB16776-2005JC887-2001dryhangingstonecurtainwallwithepoxyadhesivesealantforglasscurtainwalljointsJC/T882-2001JC/T883-2001moldforbuildingstonebuildingsealantsealantJC/T88

4、5-2001elastomericsealantforinsulatingglassJC/T486-200114,buildingcurtainwallfastenersforstandardsteelhighstrengthboltswithlargeHexagonhead,largeHexagonnuts,washerstechnologyGB/T1231-2006highstrengthplainwashersforsteelstructuresGB/T1230-2006highstrengthlargeHexagonnutsforsteel

5、GB/T1229-2006high-strengthbigsixheadboltsforsteelGB/T1228-2006mechanicalpropertiesoffastenersMultigripblindrivetsGB/T3099.2-2004GB/T3098.19-2004fastenerterminologytestmethodsformechanicalpropertiesoffastenersforblindrivetsGB/T3098.18-2004wingnutfastenersmechanicalpropertiesens

6、uretorqueGB/T3098.20-2004mechanicalpropertiesoffastenersofstainless④决策：当抽样结果是时，拒绝，认为与有显著差异；否则接受，认为与无显著差异.例3.3.1某细纱车间纺出的一种细纱支数的标准差，现从某日纺出的一批细纱中随机抽出16缕进行支数测量，算得子样标准差，问：纱的均匀度有无显著变化（取）？假定母体分布是正态的。解:设该日纺出的纱的支数，均未知，作假设检验统计量给定显著水平，拒绝域为insulatingpropertiesofair...GB/T9966.3-2001testme

7、thodsfornaturalfacingstonespart4:wearresistancetestmethodforGB/T9966.4-2001testmethodsfornaturalfacingstones5thpart:testmethodforscleroscopehardnessGB/T9966.5-2001testmethodsfornaturalfacingstones6thpart:testmethodforacidresistanceGB/T9966.6-2001testmethodsfornaturalfacingston

8、etestmethodsfornaturalfacingstones8thpart:byuniformstaticpres