Minitab Introduction.ppt

03:MinitabIntroductionAnOverviewofMinitabver12.2,GEGlobalResearchGreenBeltDMAICCourse,WhatisMinitab?,StatisticalsoftwarepackageHasmanyofthetoolsneededtosuccessfullyanalyzedatawithrigorGraphsStatisticaltoolsfordataanalysisSixSigmaReports,CurrentSoftwareRelease:12.2,WhatMinitabCanDo*,DescriptiveStatisticsGageR&RCapabilityAnalysis(ZST/ZLT)Graphing-ManyTypes!Pareto,FishboneHypothesisTestingProduct&ProcessSixSigmaReportsGenerationofTestPlansforDesignedExperimentsAnalysisofDOEresultsStatisticalProcessControlRandomDataGenerationforsimulations,AGreatToolboxforSixSigmaProjects!,*Subjectstobediscussedthroughoutthecourse,WhatdoesMinitabLookLike?,Onlyonewindowactiveatatime,Highlightedbarindicatesactivewindow,PullDownmenus&DialogBoxes,WhatisaDialogBox?,ThedialogboxisthewaytocommunicateyourrequirementstoMinitab(variables,options,analysismethods,etc.).,*SeeAppendixformoreinformationondialogboxes,Threedotsafteramenuselectionindicatesa“dialogbox”willappearwhenthatitemisselected.Anarrowheadindicatestherearemoremenuselectionsavailable,ContextSensitiveHelpinMinitabisReallyHelpful!,ExampleofaDialogBox:,WaystoenterdatainMinitab,Entereddirectlyintothespreadsheet(theDatawindow)TypethedatadirectlyinUsethedataentryarrowtochoosehowyouwishtoenterthedata(inrowsorincolumns)Copied/pastedFromMINITABFromother“Windows”softwareImported/LinkedFrommanycommonlyusedsoftwarepackagesFromsavedtextorASCIIfilesGeneratedbyMinitabRandomdataPatterneddata(Ex.:1,2,3,4,1,2,3,4.)Referencedata(subscriptsthatindicatethesourceofthedata),MinitabTips-DataEntry,WhenenteringdataintheDataWindow,therearethreeimportantaspects:,Dataisnormallyenteredincolumnsforeaseofanalysis(clickonthesmallarrowintheupperleftcornertochangeentrydirection)Columnheadingsareenteredabovethecolumn,NOTinthefirstrow(31charactersmaximum)Ifanalphabeticcharacteristypedinthefirstcellofacolumn,theentirecolumnisconvertedtotext,HeadingRow,TextColumn,NumericColumns,DataEntryDirectionArrow,SavingInformationinMinitab,“Print”commandprintshighlightedwindowonly!Windowcanbedata,session,graph,etc.,1)AsaWorksheet-Savesthedataonly.SaveCurrentWorksheet(as)SaveWorksheetas2)AsaProject-Data,sessiontext,graphs,andmore.SaveProject(as),Scenario:AnewprocesshasrecentlybeeninstalledtomanufactureextrudedplasticsheetinAP5.Theexistingprocessisstillinservicemakingsheet.Wewanttodeterminewhetherthetwoprocessesproducesheetofthesamethickness.TheCTQforthisprocessissheetthickness.20sampleshavebeencollected(5subgroupswith4samplespersubgroup)takenatvarioustimesduringthetwo-shiftoperation.,ClassExercise,StepsintheProcess:Enterthedata(Ys)inaspreadsheetAddcolumnswithotherusefulinformation(Xs,subscripts,etc)Arrangethedataforanalysis(combine,stack,etc.)Graphthedata,DefinethePracticalProblemFirst,StartablankworksheetandenterthedatabelowintocolumnsC1andC2.Labelyourcolumnsasindicated.UsingtheEnterkeywillalwayscausethecursortomoveinthedirectionofthedataentryarrow.(Makesurethearrowispointingdown),20DataPoints5subgroups(fourdatapointstakenatdifferenttimesofday)Themeasurementsareinthousandthsofaninch.,Step1:EntertheData,ColumnTitles,MinitabColumnHeadings,DoubleClicktocopyDataintoMinitab,Step2:AdditionalColumnsofInformation,Minitabhasfeaturestomaketheaddingofadditionalinformationeasierthantypingitinbyhand.Inthiscase,itwouldbeveryhelpfultonumberthesamplesandindicatethetimeofdaythesamplewastaken.,Firsttypeintwonewcolumnheadings:C3:SampleNumberC4:TimeSeconduseMinitabsbuilt-infeatureforgeneratingpatterneddata:,IMPORTANTNOTE!Minitabmusthaveuniquecolumnnamesforeachnewcolumn.,CalcMakePatternedDataSimplesetofnumbers,ForColumnC3,wewouldliketoindicatethesamplenumber.Sincethereare20samples,C3shouldcontainnumbersfrom1-20.Hereshowthatdataiscreated:,Adialogboxshouldappear.Fillitinasshownbelow:,Hereswhatthedatawindownowlookslike:,Ifyouhavemanydatapointsthisismucheasierthantypingtheminbyhand,CalcMakePatternedDataSimpleSetofNumbers,Now,letsfillinthetimesthesamplesweretakeninColumnC4.Remember,therewere5subgroupsofdatawith4sampleseach.Subgroupsweretakenatthefollowingtimes:9:00am12:00pm3:00pm6:00pm9:00pm,Usethesamemenucommand,butthistimeselect“Date/TimeValues”,CalcMakePatternedDataSimplesetofDate/TimeValues,Fillinthedialogboxasshownbelow:,Thedataisinthespreadsheet-nowwehavetoarrangeitsoMinitabcananalyzeit.,ClickOK,Step3:ArrangingDataforAnalysis,Whatdoesstackingmean?-Placingdatafrommultiplecolumnsintooneormore(new)columnsHowisstackingdone?-Fromthemenubar,choose:ManipStack/UnstackChoseStackColumnsorStackBlocksofColumns-Fillinthedialogboxasrequired,Minitab(generally)needsdataincolumnstoperformcomparisonsandstatisticalanalyses.Tomanipulateallthedataintotheappropriatecolumnsiscalled“Stacking”.,“StackBlocksofColumns”allowsmultiplecolumnsofdatatobestacked,Whatisitwearetryingtodo?Wedliketohaveonecolumnwithallofthethicknessdata(40totalpoints),andcarryalloftheadditionalinformationonsamplenumberandtimewitheachdatapoint.NOTE:Whenmorethanonecolumnneedstobestackedsimultaneously,Minitabreferstothecolumnsas“blocks”.,Fromthemenubar,makethefollowingselection:,Step3:Contd.,ManipStack/UnstackStackBlocksofColumns,Fillinthedialogboxasshown:,1.Enterthecolumnsyouwantstackedinthe“StacktheFollowingBlocks”section.2.Enterthenamesofthenewcolumnswherethestackeddatawillbestoredinthe“Storestackeddatain”section.3.Enteracolumnnameinthe“Storesubscriptsin”block.Thiscolumncontainssubscripts,whichidentifywhichdatasetfromwhichthestackeddatacame.Inthiscase,ExistingandNewequipmentwillbeidentifiedwitha1and2respectively.,Rememberthatcolumnheadingsmustbeunique!,ClickOK,Stackthe1strowontopof2ndrowandstorethedatainthen