Statistica 统计实例使用教程

BasicOperationforDataByYeakerCaoCollegeofLifeScienceofHubeiUniversityQuestion1:TranslateallthevariablesintoChinese.DoubleclickseverysinglevariableInput“性别”hereinsteadof“Gender”Press“OK”buttonWhenwefinishedtranslatingallthevariables,wefoundthatthespacewasnotenoughforholdingtheitemsweneed.Soweneedtochangetheheightsandwidths.ThenItlooksmorecomfortable.Stepone.Selectalltheform.Steptwo.Visitthe“Format”itemsStepthree.Clickthe“Width”buttonStepfour.Changethenumberto20andtouchthe“OK”Wecanemploythe“Data”itemsandvisit“TextLabels”Herewealterthetypeto“Doubles”Translatethemandpress“OK”buttonHerewecanchangethecolorofallthe“TextLabel”WhenwepresshereThehomeworkofbasicstatisticanalysisByYeakerCaoCollegeofLifeScienceofHubeiUniversityContent1.Thedatafordescriptivestatisticandthecorrespondinghistograms2.Correlationanalysis3.Thecrossedanalysisamongcategoricalitems4.TablesandbannersPart.1Thedatafordescriptivestatisticandthecorrespondinghistograms1.Opentheexamplefile“Employees.sta”2.Clicktheitemof“Statistics”andchoose“BasicStatistic\Tables”Choose“DescriptiveStatisticsandclick“OK”buttonClickthe“Variables”buttonandselecttheitemswhichneedtobeanalyzedbeforepressingthe“OK”button1.Turntothetabcontrol“Advanced”2.Theboxeswhicharesymbolizedtheitemschoosedornotcanbetickedornot3.ChecktheconsequenceasthePicture2exhibitedPicture1Picture21.Transfertovisitthetabcontrol“Normality”2.Alterthe“Numberofinterval”andpressthebutton”Frequencytable”anditwilldisplaylikepicture23.Ofcoursemovethemouseto“Histograms”andknockit,thenseewhattoemerge.Picture1Picture2Picture3Tips:Ifyouwanttocheckotherhistogramsofitems,justclickthecorrespondingitemontheleft1.Letthearrowofmousewhichappearonthescreentotouchthetabcontrol“Prob.&Scatterplots”andthentouchthe2Dscatterplots2.Selecttheitemthatneedtobeanalyzedandpressthe“OK”buttonThisistherelationshipbetweenageandsalaryPart2.Correlationanalysis1.Clicktheitemof“Statistics”andchoosethe“BasicStatistics\Tables”.2.Knockthe“Correlationmatrices”fortwice.Tapthebuttonof“Onevariablelists”andclickthe“OK”buttonafterpickingtworequesteditems1.Taptheoptionalcard“Advanced/plot”2.Clickthebuttonof“scatterplotmatrix”3.Selectbothofthemandpress“OK”buttonTip:Whenpressthebuttonof“Summary:Correlationmatrix”,thisformwillappear1.Pointtothetabcontrol“Options”2.Changethechoiceof“Displaydetailtableof”andclickthebutton”Summary”NullHypothesis:therearenocorrelationbetweenageandsalaryAlternativeHypothesis:thereareremarkablecorrelationbetweenageandsalaryResult:DenytheNullHypothesisandacceptthealternativehypothesisPart3.Thecrossedanalysisamongcategoricalitems1.Clicktheitemof“Statistics”andchoose“BasicStatistic\Tables2.Knockthe“Multipleresponsetables”fortwice.1.Clickthebutton“specifytable(selectvariables)”2.Selecttheitemsthatneedtobeanalyzedandpress“OK”buttonPressthisbuttonagainPressthebutton“Summary:Reviewsummarytables”Part4.TablesandBanners1.Clicktheitemof“Statistics”andchoose“BasicStatistic\Tables2.Knockthe“TablesandBanners”fortwice.1.Clickthetabcontrol“Stub-and-banner”2.Pressthebutton“specifytables(selectvariables)”3.Selectonlyoneitemfromeachsideandthetapthe“OK”buttonPresshereNowwecancheckwhatwegetfromthisthreebuttonsThat’sallThankyouforyourtime&attentionThecomparisonandtestbetweentwomeansbyt-testByYeakerCaoCollegeofLifeScienceofHubeiUniversityT-testindependentbygroupsOpenthedatasetdocumentsandchoosethefileEmployees.staSample100employeesfromtheSoonerPretzelCompanyrandomlyandgettheresultshowingaboveAnalysis:Apparently,theSoonerPretzelCompanyisalargeenterprise,sothesamplescorrespondnormaldistributionProcess:1.Clicktheitem“statistics”andchoose“BasicStatistics/Tables”2.Chooset-test,independent,bygroupsandpressthe“OK”buttonProcess:1.Pressthebutton“Variables”2.Selectthe“Dependentvariables”and“Groupingvariables”thenpress“OK”button.PresshereTheresultandanalysisWehavetoaccepttheNullhypothesisthattheincomebetweenmaleandfemaleemployeesarenodifferenceAnalysisNullHypothesis:TheincomebetweenmaleandfemaleemployeesarenodifferenceAlternativeHypothesis:TheincomebetweenmaleandfemaleemployeesaredifferentTheresult:1.T-valueis-1.07612anditiswithintherangewhichwehavetoaccepttheNullHypothesis2.AndalsothepVariancesisequalto0.743623,thatmeansthispossibilitywilloccur74timeswhenwedothesameexperimentsfor100times.That’sallandthankyouANOVAByYeakerCaoCollegeofLifeScienceofHubeiUniversityOutline•1.One-wayANOVA•2.MaineffectsANOVA•3.FactorialANOVAPart1One-wayANOVAExample:Asurveyabouttheconsumerpriceindex(CPI)infouraspectswasrandomlysampledfrom8citiesofChinainJanuary,2011.TrytoanalyzewhethertheCPIoftheinhabitantsofChinagetthesignificantdifferencefromthefouraspectsornot.(Tab1.LiYumao,2012)Constructanewformincludedfourvariablesandeightcases(Tab2)Tip:StatisticaVersion10offersaveryconvenienttoolforcatchtheimageWecanclickthisblockandvisit“CaptureRectangle”toselecttheareaweneedordirectlypress“Ait+F3”onthekeyboardSwifttothetab“Statistic”Clickthebutton“BasicStatistics”Tip:“CatcherScreen”doesn’tworkwhiledoingstatisticProblem:Ihavetoselectallthesefouraspectsasgroupingvariablesbuttheremustassignavariabl