社會議題

Statisticalhelp1題...第二 - 社會議題

Isla avatarIsla · 2013-12-09

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Question3:(c)Asurveywasconductedtoinvestigateopinionsaboutglobalwarming.Therespondentswereaskedtoselectwhattheyexpectisthecauseofglobalwarming,andtheresultsaregiveninthetablebelow.HumanactivityMale314Female308NaturalpatternsMale146Female162Don’tknowMale44Female46Atthe0.05levelofsignificance,isthereevidenceofasignificantrelationshipbetweengenderandtheexpectedcauseofglobalwarming?(12marks)
社會議題

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Joseph avatarJoseph2013-12-09
以下用獨立性檢定:H0:獨立H1:不獨立df=(列數-1)(行數-1)=(2-1)(3-1)=1*2=2臨界值=χ^20.05(2)=5.99(查卡方分配表)列出觀察值o,再分別計算行列總合,結果如下表:圖片參考：http://imgcld.yimg.com/8/AC09299269/o/2013121014...再計算理論值eij=第i列總合*第j行總合/行列總合e11=R1*C1/1020=504*622/1020≒307.3412e12=R1*C2/1020=504*308/1020≒152.1882其餘eij計算仿照以上方法,結果如下表:圖片參考：http://imgcld.yimg.com/8/AC09299269/o/2013121014...再計算各行列的(e-o)^2/eR1C1:(307.3412-314)^2/307.3142≒0.1443R1C2:(152.
Megan avatarMegan2013-12-11
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