Re: [閒聊] 經建的朋友們 來聊一下吧
看板Examination作者kuanshian (kuanshian)時間12年前 (2013/07/09 21:42)推噓31(31推 0噓 36→)留言67則, 13人參與討論串2/2 (看更多)
借個標題問一下,有沒有人覺得今天高考統計(經建)是不是少給一個t值?
因為此題並非相關變數,所以自由度不可能是9或10,最有可能的是18或20,
所以在沒有給t值的情況下,還可以檢定?
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※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 27.105.5.162
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07/09 21:43, , 1F
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07/09 21:47, , 7F
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我很確定不是要用相依,因為非同一母體,除非你在第二小題就說明是出自同一母體,
否則就是少給t值~
※ 編輯: kuanshian 來自: 27.105.5.162 (07/09 21:50)
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看來應該是我錯了,那明年再見~~
※ 編輯: kuanshian 來自: 27.105.5.162 (07/09 22:10)
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非也,非也~
其實看考卷上給的自由度就知道要考什麼了,亦即從題目中就可以找到答案了,
不過我還是要說,雖然相依母體的定義是成對出現,
但歷年來的考題很少會出現這兩種母體的概念,
大部分都是單一母體測試兩次後的結果來做檢定,
所以我才會誤以為非相依,也使我得以在明年可以再次見到大家了~~
※ 編輯: kuanshian 來自: 124.9.163.175 (07/10 00:39)
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