商业报告英文版.docx
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商业报告英文版.docx
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商业报告英文版
商业报告-英文版
Restaurantdataanalysisreport
Content
Executivesummary
Investigationisundoubtedveryimportantforbusinessandpersonal.Theauthorofthispaperthinkthatmanyelementsshouldbeconsideredtomakeabetterunderstandingofwhetheranelegantrestaurantwillbesuccessfullyconstructed.Inotherwords,itisnecessarytoknowmoreinformationaboutthemarket.Inthisreport,thesoftwareofSPSSwillbeusedtoanalyzethedataandstatisticalmethodswillbeinterpretedinthecase.
Introduction
MichaelJenkinsisgoingtooperatehisownrestaurantandheaskedtheresearchfilmtoconductasurvey.Thepurposeofthesurveywastoexploremoreinformationtoverifytheprobabilityofthesuccessinhisrestaurantandthengivingsomeusefulinformationtohelphimmakedecisions.Thereportwillanalyzethemarketinfluencefactorsandusestatisticalmethodssuchasuni-variate,bi-variateandmulti-variatetomakethedatamoremeaningful.Attheend,somerecommendationsbasedontheanalysisresultwillbegiven.
Methodsofanalysis
Dataanalysisshouldbedifferentindifferentproblems(Pallant,2010).Inthistheprocedureofthedataanalysis,theapproachofthedataanalysisincludeasbelow.
Thedescriptivestatisticisabriefdescriptionofthecharacteristicsofthedata,suchasmean,varianceandothers.
TheindependentsampleTtestisoneoftheuni-variateanalyses.Thistestmethodisapplicabletotheassumptionofthepopulationwhosedistributionisnormal,populationvarianceisunknown(Larson,2010).Andthistestisusedtodistinguishthedifferenceofthemeanbetweenthesampleandthepopulation.
Thepairedsamplestestisoneofthebi-variateanalyses.Thetestjudgedwhethertworelatedsamplesarefromthesamepopulationanditalsoassumedthatthedistributionisnormal.Throughcomparingthesignificanceofthestatisticstofthedifferentsamples,thedifferencebetweentwosamplescanbeseen.
Theindependenttesthasthesameprincipleasthepairedsamples.However,itisusedwhentwosamplesareindependentfromeachother.Andtheresultliesinthesignificanceofthestatisticst.
Thesinglefactorofvariancetestisusedwhenthevariateismorethantwo.Anditisthefoundationoftheanalysisofvariance.Thetheoryofthemethodistostudythedegreeofafactoraffectedbyotherfactorsandseewhethertheresultsaresignificant.
Pearsoncorrelationisanalyzedtoseethesimplecorrelationbetweentwofactorsandfindthepotentialmeaning(Luo,2011).
Analysisoftheeachquestion
Becausethesamplesizeislarge,soassumethatisanormaldistribution(Yang.2011).
Hypothesis1.Thecostthatpeopledesiretopayforamealisnomorethanthecalculatedvalueof$19.
Thenullhypothesisislikethesubtitleupside.Thealternativehypothesisisthattheaverageamountisnotlessthantheforecastvalue.Weusethedescriptivestatisticsandthengetthefollowingresultasthetable1.
Table1theaveragemealtobepriced
Accordingtothetable,wecanseethatthemeanis19.23morethan19,sorejectthenullhypothesis.
Hypothesis2.Theaveragerevenueofthepeoplesurveyedisdifferentfrom$70,000.
Choosethenullhypothesisastheaverageincomeis$70,000andthealternativehypothesisisnotequalto$70,000.Becausethisisonesample,sotheone-sampletestisused.
Table2One-SampleTest
Fromthetable2wecanseethatthestatisticvalueoftis4.905,thedegreeofthefreedomis399,the95%confidenceintervalis(4247,9927)andtheconfidencelevelofthestatistictis0.000,sorejectthenullhypothesisandwethinkthemeanofthepeoplesurveyedintherevenueisdifferentfrom$70,000.Andthevalueis$77,087.50thatissignificant.
Hypothesis3.Thepreferencedegreeforsimpledécorisequaltothedegreeofelegantdécor.
Choosethenullhypothesisasthepreferenceforthetwosamplesarethesameandthealternativehypothesisisthetwoarenotequal.Themeanofthetwochoicesforthesimpleandelegantare2.26and3.64.Becausethisisthepreferencerelatedtooneperson,whichmeansthetwosamplesarerelated,sothepairedsampletestisused.
Table3PairedSamplesCorrelations
N
Correlation
Sig.
Pair1
ThePreferenceforSimpleDecor&ElegantDecor
400
.838
.000
Fromthetable3wecanseethatthestatisticvalueofcorrelationiso.838,andtheconfidencelevelofthecorrelationtestis0.000,sothetwosampleshavetightrelationshipwitheachother.
Table4PairedSamplesTest
Fromthetable4wecanseethatthestatisticvalueoftis-40.398,thedegreeofthefreedomis399,andtheconfidencelevelofthestatistictis0.000,sothenullhypothesisshouldberejectedandwethinkthedifferencebetweenthetwosamplesissignificant.
Figure1
Figure2
Basedonthechartabove,wecouldknowthatnearly16.5%oftherespondentsfeelpreferenceforthesimpledécor,60.75%oftherespondentsfeelpreferencefortheelegantdécor,sotheelegantoneispreferred.
Hypothesis4.Differentmaritalstatusofpeoplespentdifferentlyinthemeannumberinrestaurantseachmonth.
Thenullhypothesiscouldbethatdifferentmaritalstatusforthetwosamplesarethesameinthemeanamountspentandthealternativehypothesisisthetwoaredifferent.Becausethisisthreekindofmaritalstatuswiththeamountspentinrestaurantsandwewanttoknowthecertaindependentvariable,sothesinglefactoranalysisofvarianceisused.
Table5ANOVA
Fromthetable5,wecanseethatthestatisticvalueofFis99.939,andtheconfidencelevelofthestatistictis0.000,sorejectthenullhypothesisandwethinkthedifferencebetweenthethreekindsofmaritalstatusissignificant.
Figure3
Wecanknowthemeanofdifferentformofthemaritalstatusfromfigure3.Themeanamountspendforthemarriedishigherthantheother.Itis232.6,soitisthecategorythatspendsmost.
Hypothesis5.Meanpreferenceforjazzcombo=theaveragepreferenceforstringquartet.
Choosethenullhypothesisasthemeanpreferenceforthetwosamplesarethesameandthealternativehypothesisisthetwoarenotequal.Themeanofthepreferenceforjazzandstringare2.40and3.39.Becausethisisthepreferencerelatedtooneperson,whichmeansthetwosamplesarerelated,sothepairedsampletestisused.
Table6PairedSamplesCorrelations
N
Correlation
Sig.
Pair1
PreferJazzCombo&PreferStringQuartet
400
.885
.000
Fromthetable6wecanseethatthestatisticvalueofcorrelationiso.885,andtheconfidencelevelofthecorrelationtestis0.000,sothetwosampleshavetightrelationshipwitheachother.
Table7PairedSamplesTest
Fromthetable7wecanseethatthestatisticvalueoftis-33.469,thedegreeofthefreedomis399,andtheconfidencelevelofthestatistictis0.000,soweshouldacceptthealternativehypothesisandwethinkthedifferencebetweenthetwosamplesissignificant.
Figure4
Figure5
Basedonthechartabove,wecouldknowthatnearly60%oftherespondentsfeelpreferenceforthestringcombo,35%oftherespondentsfeelpreferenceforthejazzcombo,sothestringoneispreferred.
Hypothesis6.Theprobabilityofattendingandthepartofthenewspaperthatisreadbypeoplehavearelationshipwitheachother.
Thenullhypothesisisnoassociationbetweenthevariateandthealternativehypothesisisassociation.WechoosethePearsoncorrelationtest.
Table8Correlations
Itisobviouslythecorrelationbetweenthetwoisweak,thevalueisonly-0.023,andtheconfidencelevelisnotsignificant.
Table9
Frequency
Percent
ValidPercent
CumulativePercent
Valid
Editorial
104
12.3
26.0
26.0
Business
112
13.2
28.0
54.0
Local
94
11.1
23.5
77.5
Classifieds
90
10.6
22.5
100.0
Total
400
47.2
100.0
Missing
System
448
52.8
Total
848
100.0
Thefrequencyanalysisofthesectionindicatesthatthebusinesspartofthenewspaperisabetterchoiceforadvertising,itaccountsfor13.2%andthefrequencyis112.
Hypothesis7.Differentpostcodeshavedifferenttendencytopayforamealintheaveragespending.
ThenullhypothesisisnodifferencebetweentheA,B,C,Dpostcodesandtheaveragemoneypeoplepaidforamealand,thealternativehypothesisisdifferent.Duetothisisfourkindsofpostcodeswiththeaveragepricepeoplearemorelikelytospendonamealandwewanttoknowthecertaindependentvariable,sothesinglefactoranalysisofvarianceisused.
Table10ANOVA
Fromthetable10,wecanseethatthestatisticvalueofFis3.099,andtheconfidencelevelofthestatistictis0.027,sorejectthenullhypothesisandwethinkthedifferencebetweenthefourkindsofpostcodesissignificant.
Figure6
Wecanknowthemeanofdifferentformofthepostcodesfromfigure6.TheaveragepricepeoplearewillingtopayforamealforthepostcodeBishigherthantheother.Itis20.75,soitisthecategorythatonaverageiswillingtopaymost.
hypothesis8.Themaleaveragemonthlyexpenditureintherestaurantisquitedifferentfromthefemale.
Thenullhypothesisisnodifferenceformaleandfemaleintheaveragerestaurantexpenditureinamonthandthealternativehypothesisisdifferent.Duetothegendersaretwostylessuchasmaleandfemale,andeachofthetwoareindependent,sotheindependentsamplestestisused.
Fromthetable11,wecanseethatthestatisticvalueoftis-2.98,andtheconfidencelevelofthestatistictis0.003,sorejectthenullhypothesisandwethinkthedifferencebetweenthetwokindsofgendersissignificant.Andthemeanofdifferentformofthegendersis$202.16and
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