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30六月20242008.Apr1、Minitab的基本操作MinitabBasics-LayoutOpenaproject(worksheet):File>openproject(openworksheet)File>new>minitabproject(worksheet)KeyboardshortcutsShowworksheetsfolder:Ctrl+Alt+DShowgraphsfolder:Ctrl+Alt+GShowsessionfolder:Ctrl+Alt+MEditlastdialog:Ctrl+E2、基本图形分析GraphGraph>ScatterplotGraph>ScatterplotGraph>HistogramHistogram–AnotherOption…Graph>BoxplotBoxplotExampleBoxplotExampleBoxplot–AnotherOption…Graph>TimeSeriesPlotABCSALES.MTWStat>BasicStatistics>NormalityTestStat>BasicStatistics>NormalityTest3.1、基本统计量分析Stat>BasicStatistics>DisplayDescriptiveStatistics3.1、Stat>BasicStatistics3.1、Stat>BasicStatistics3.1、Stat>BasicStatistics3.2、相关与回归Correlation相关系数(r)为-1和+1之间的某个数值。‘-1’表示有很强的负相关‘0’表示完全不相关‘+1’表示有很强的正相关判定规则:相关系数(r)>.80或者<-.80为显著相关系数(r)在-.80和.80之间不显著RegressionFromtheFittedLinePlot,wecanseethatastheageofthepropellantincreasestheShearStrengthdecreases.Thisisanexampleofaninverserelationship.WealsoseealinearequationandanR-Sqvalue.Whatarethese?Let’sexplore!Session窗口RegressionAnalysis:ShearStrength(psi)versusAgeofPropellant(weeks)TheregressionequationisShearStrength(psi)=2628-37.15AgeofPropellant(weeks)S=96.1061R-Sq=90.2%R-Sq(adj)=89.6%AnalysisofVarianceSourceDFSSMSFPRegression115274831527483165.380.000Error181662559236Total1916937383.3、假设检验HypothesisTestingWashington,DC-(AP)Globalwarmingcontinuestoincreaseatalarmingrates.TheEPAcontinuestodevelopplanstocurbC02outputatallU.S.manufacturingfacilities…….3.3、Stat>BasicStatisticsOne-wayANOVA:ClarityversusRegionSourceDFSSMSFPRegion20.03830.01921.270.295Error350.53030.0152Total370.5687S=0.1231R-Sq=6.74%R-Sq(adj)=1.41%PooledStDev=0.1231两种类型的错误PValueIsExtremelyImportantRememberThisKeySaying….Formostcaseswewilluse.051-SampleZ3.3、Stat>BasicStatistics3.3、Stat>BasicStatistics1-Proportion3.3、Stat>BasicStatistics3.3、Stat>BasicStatistics1-Variance3.3、Stat>BasicStatistics3.3、Stat>BasicStatistics3.4、方差分析（ANOVA)ANOVAOneWayANOVA3.4、Stat>ANOVAGeneralLinearModel3.4、Stat>ANOVA3.4、Stat>BasicStatistics3.4、Stat>BasicStatistics3.5、实验设计（DOE)实
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