s5.bo=theaveragepreferenceforstringquartet.Choosethenullhypothesisasthemeanpreferenceforthetwosamplesarethesameandthealternativehypothesisisthetwoarenotequal.Themeanofthepreferenceforjazzandstringare2.40and3.39.Becausethisisthepreferencerelatedtooneperson,whichmeansthetwosamplesarerelated,sothepairedsampletestisused.Table6PairedSamplesCorrelationsNCorrelationSig.bo&PreferStringQuartet400.885.000Fromthetable6wecanseethatthestatisticvalueofcorrelationiso.885,andtheconfidencelevelofthecorrelationtestis0.000,sothetwosampleshavetightrelationshipwitheachother.Table7PairedSamplesTestFromthetable7wecanseethatthestatisticvalueoftis-33.469,thedegreeofthefreedomis399,andtheconfidencelevelofthestatistictis0.000,eptthealternativehypothesisandwethinkthedifferencebetweenthetwosamplesissignificant.Figure4
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