第三章网络作业(两个商业案例的统计分析)

1/2案例分析作业1：PelicanStoresPelicanStores,adivisionofNationalClothing,isachainofwomen’sapparelstoresoperatingthroughoutthecountry.ThechainrecentlyranapromotioninwhichdiscountcouponsweresenttocustomersofotherNationalClothingstores.Datacollectedforasampleof100in-storecreditcardtransactionsatPelicanStoresduringonedaywhilethepromotionwasrunningarecontainedinthefilenamedPelicanStores.Table3.14showsaportionofthedataset.TheproprietarycardmethodofpaymentreferstochargesmadeusingaNationalClothingchargecard.Customerswhomadeapurchaseusingadiscountcouponarereferredtoaspromotionalcustomersandcustomerswhomadeapurchasebutdidnotuseadiscountcouponarereferredtoasregularcustomers.BecausethepromotionalcouponswerenotsenttoregularPelicanStorescustomers,managementconsidersthesalesmadetopeoplepresentingthepromotionalcouponsassalesitwouldnototherwisemake.Ofcourse,Pelicanalsohopesthatthepromotionalcustomerswillcontinuetoshopatitsstores.MostofthevariablesshowninTable3.14areself-explanatory,buttwoofthevariablesrequiresomeclarification.ItemsThetotalnumberofitemspurchasedNetSalesThetotalamount($)chargedtothecreditcardPelican’smanagementwouldliketousethissampledatatolearnaboutitscustomerbaseandtoevaluatethepromotioninvolvingdiscountcoupons.请按如下要求提交分析报告：Usethemethodsofdescriptivestatisticspresentedinthischaptertosummarizethedataandcommentonyourfindings.Ataminimum,yourreportshouldincludethefollowing:1.Descriptivestatisticsonnetsalesanddescriptivestatisticsonnetsalesbyvariousclassificationsofcustomers.2.Descriptivestatisticsconcerningtherelationshipbetweenageandnetsales.2/2案例作业2：MotionPictureIndustryThemotionpictureindustryisacompetitivebusiness.Morethan50studiosproduceatotalof300to400newmotionpictureseachyear,andthefinancialsuccessofeachmotionpicturevariesconsiderably.Theopeningweekendgrosssales,thetotalgrosssales,thenumberoftheatersthemoviewasshownin,andthenumberofweeksthemotionpicturewasinthetop60forgrosssalesarecommonvariablesusedtomeasurethesuccessofamotionpicture.Datacollectedforasampleof100motionpicturesproducedin2005arecontainedinthefilenamedMovies.Table3.15showsthedataforthefirst10motionpicturesinthefile.请按如下要求提交分析报告：Usethenumericalmethodsofdescriptivestatisticspresentedinthischaptertolearnhowthesevariablescontributetothesuccessofamotionpicture.Includethefollowinginyourreport.1.Descriptivestatisticsforeachofthefourvariablesalongwithadiscussionofwhatthedescriptivestatisticstellusaboutthemotionpictureindustry.2.Whatmotionpictures,ifany,shouldbeconsideredhigh-performanceoutliers?Explain.3.Descriptivestatisticsshowingtherelationshipbetweentotalgrosssalesandeachoftheothervariables.Discuss.