商務(wù)統(tǒng)計全套配套課件[美]AmirD.AczelJayavelSounderpandian著譚英平等譯Chap001.ppt

商務(wù)統(tǒng)計全套配套課件[美]AmirD.AczelJayavelSounderpandian著譚英平等譯Chap001.ppt

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時間：2020-03-22

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1、COMPLETE BUSINESS STATISTICSbyAMIRD.ACZEL&JAYAVELSOUNDERPANDIAN6thedition.PreparedbyLloydJaisingh,MoreheadStateUniversityChapter1IntroductionandDescriptiveStatisticsUsingStatisticsPercentilesandQuartilesMeasuresofCentralTendencyMeasuresofVariabilityGroupedDataandtheHistogramSkewnessandKurtosisRelati

2、onsbetweentheMeanandStandardDeviationMethodsofDisplayingDataExploratoryDataAnalysisUsingtheComputerIntroductionandDescriptiveStatistics1Distinguishbetweenqualitativedataandquantitativedata.Describenominal,ordinal,interval,andratioscalesofmeasurements.Describethedifferencebetweenpopulationandsample.C

3、alculateandinterpretpercentilesandquartiles.Explainmeasuresofcentraltendencyandhowtocomputethem.Createdifferenttypesofchartsthatdescribedatasets.UseExceltemplatestocomputevariousmeasuresandcreatecharts.LEARNINGOBJECTIVES1Afterstudyingthischapter,youshouldbeableto:Statisticsisasciencethathelpsusmakeb

4、etterdecisionsinbusinessandeconomicsaswellasinotherfields.Statisticsteachesushowtosummarize,analyze,anddrawmeaningfulinferencesfromdatathatthenleadtoimprovedecisions.Thesedecisionsthatwemakehelpusimprovetherunning,forexample,adepartment,acompany,theentireeconomy,etc.WHATISSTATISTICS?1-1.UsingStatist

5、ics(TwoCategories)InferentialStatisticsPredictandforecastvaluesofpopulationparametersTesthypothesesaboutvaluesofpopulationparametersMakedecisionsDescriptiveStatisticsCollectOrganizeSummarizeDisplayAnalyzeQualitative-CategoricalorNominal:Examplesare-ColorGenderNationalityQuantitative-MeasurableorCoun

6、table:Examplesare-TemperaturesSalariesNumberofpointsscoredona100 pointexamTypesofData-TwoTypesNominalScale-groupsorclassesGenderOrdinalScale-ordermattersRanks(toptenvideos)IntervalScale-differenceordistancematters–hasarbitraryzerovalue.Temperatures(0F,0C)RatioScale-Ratiomatters–hasanaturalzerovalue.

7、SalariesScalesofMeasurementApopulationconsistsofthesetofallmeasurementsforwhichtheinvestigatorisinterested.Asampleisasubsetofthemeasurementsselectedfromthepopulation.Acensusisacompleteenumerationofeve

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