《商务统计》（英文版）全套课件253P.pptx

《商务统计》（英文版）全套课件253P.pptx

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,BusinessStatisticsBEO1106,BEO1106-Week1,1,WEEK1INTRODUCTIONTOSTATISTICSPRESENTATIONOFDATAReference:

Selvanathanetal.（2004）,Chapters1,2,SUBJECTINFORMATION,found,workshopmaterial,theassignmentandpracticequestionscanbeanddownloadedfromthesubjectwebpageonCentralPoint:

http:

/www.business.vu.edu.au/beo1106,Nohardcopiesofanymaterialwillbeprovidedorsold.Otherrelevantinformationandimportantmessagesfromthesubjectco-ordinatorwillbepostedduringthesemesteronthiswebpage.,BEO1106-Week1,2,Aim:

Thissubjectisanintroductiontothebasicstatisticaltechniquesnecessarytodescribeandanalyzebusinessandeconomicdata.Itsfocusisonsoundmanagerialdecisionmakinginbusiness.SubjectInformation:

Thesubjectguide,lectureslides,tutorialand,Text:

Selvanathan,Aetal.（2004）:

AustralianBusinessStatistics,3rdedition（Abridged）,Nelson.,Assessment:

Test/CaseStudy（inweek6tutorials,closedbook）Assignment（ingroupsof2students）Examination（3hours,multiplechoice,openbook）,BEO1106-Week1,3,20%20%60%Total100%,Topassthissubjectyoumustcompleteeachoftheaboveassessments,obtainatleast30outof60intheexaminationandobtainatleast50outof100intotal.Toobtainasatisfactorymarkinthissubjectyoushouldattend:

Lectures:

2hoursTutorials:

1hourWorkshops:

1hour（Optional）anddevoteabout6hoursaweektoindependentlearning,whichshouldincluderevisinglecturematerial,readingthechaptersofthetextbook,attemptingrecommendedquestionsandcompletingassignmenttaskseachweek.,Statisticalsoftware:

Micro-SoftExcel.DuringtutorialcomputerlabclassesyouwillbegiveninstructionsonusingMSExcelforstatisticalanalysis.IfyouwishtouseMSExcelathomeforyourassignmenttasks,youmustinstalltheDataAnalysisPlusadd-inwhichissuppliedwiththetextbook.Calculator:

Acalculatorisessentialforthissubject.Youarepermittedtotaketotheexamanyhandheldscientific,statisticalorgraphicscalculator.SubjectCoordinator:

HubertFernandoOfficeLocation:

A534FootscrayParkCampus,E-mail:

Hubert.Fernandovu.edu.auTelephone:

99194575Tutorialtimes:

Afterweek-2forallinquiriesrelatingtotutorialtimes,contact:

MsMiraMachut,FootscrayParkCampus,A543,BEO1106-Week1,4,nMajortopics:

1）DescriptiveMethods,BEO1106-Week1,5,Tabular,graphicalandnumericalsummaries.,2）ProbabilityTheory,Howtomeasurewhatisprobable?

data,6）RegressionandCorrelation,Howtodeterminetherelationshipbetweenvariables?

BUSINESSSTATISTICS,3）ProbabilityDistributions,BinomialandNormalprobabilities.,SamplingTheorySamplingDistributions.EstimationandHypothesisTestingMakinginferencesaboutpopulationsusingsample,TimeseriesanalysisandForecastingTimerelateddataanalysisIndexNumbersTimerelateddata,relativetoapointintime.,STATISTICALMETHODS,BEO1106-Week1,6,Twobasiccategoriesn1）DescriptiveStatisticsMethodsusedtosummarizethemassesofdataavailabletous,sothatwecaneasilyandclearlyseetheoverallpicture.Eg.Tabular,graphicalandnumericalsummaries.2）InferentialStatisticsMethodswhichfacilitatethemakingofgeneralizations（i.e.inferences）aboutpopulationcharacteristicsfrominformationobtainedfromasample.Eg.EstimatingtheaverageincomeofallAustralianhouseholdsbysurveyingasmallnumberofhouseholdsfromaroundthecountry.,STATISTICALTERMS,BEO1106-Week1,7,Data:

Individualpiecesofinformation.e.g.thenumberofBEO1106studentsinsemester1,2005atVU.Manystudents,Manycharacteristics（e.g.age,income,gender）Census:

Acompletesurveycarriedoutonpopulationdata.Population:

Thecompletesetofitems/datathatareofinterestinastatisticalinvestigation.（Eg.theagesofallBEO1106studentsatVU）Muststate1.Populationitem2.Boundary3.Characteristicofinterest.Sample:

Asmallsubsetofthepopulation.（Eg.theagesofBEO1106studentsintutorialgroup1.）Parameter:

Anumericalsummarymeasureofapopulation.（Eg.averageageofallBEO1106students.）Statistic:

Anumericalsummarymeasureofasample.（Eg.averageageofthestudentsintutorialgroup1.）,Ex1:

（Selvanathan,p.8,ex.1.3（2000editionp.7,ex.1.3）Acoucillorwhoisrunningfortheofficeofmayorofacitywith25000registeredvoterscommissionsasurvey.Inthesurvey,48%ofthe200registeredvotersinterviewedsaytheyplannedtovoteforher.,BEO1106-Week1,8,a）,Whatisthepopulationofinterest?

Theintentionsofthe25000registeredvoterstovoteforherornot.,b）,Whatisthesample?

Theintentionsofthe200selectedregisteredvoters.,c）,Isthevalue48%aparameterorastatistic?

Itisastatistic,sinceitreferstotheproportionofregisteredvotersinthesamplewhointendtovoteforthispolitician.,Ex2:

（Selvanathan,p.8,ex.1.6（2000editionp.7,ex.1.6）Youareshownacointhatitsownersaysisfairinthesensethatitwillproducethesamenumberofheadsandtailswhenflippedrepeatedly.,BEO1106-Week1,9,a）,Describeanexperiment