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作者 moniya 在 PTT [ Statistics ] 看板的留言(推文), 共26則
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2F推:指數分配是右偏...眾數<平均數<中位數03/22 22:34
2F推:你只要看樣本的p=80/150 > 0.5(大於,所以H1是右尾)03/09 09:34
3F→:既然H1是右尾了,理所當然H0是 <= 0.5 了03/09 09:35
2F→:a=[X(1)+X(n)]/2,用目標函數解03/03 14:27
10F→:是不是考慮直接比較每個方案的變異係數?? (1是最低的)02/21 23:26
2F→:不能標準化,N不夠大!!02/20 08:52
1F→:Gamma((n+m)/2,2(a+b))02/15 08:23
2F→:上面前提要a=b,不相等的話,好像只能拆開看了??02/15 08:26
1F→:[(S1^2/S2^2)*F0.05(7,9),(S1^2/S2^2)*F0.05(9,7)]02/14 21:30
2F→:F分配自由度沒1的話,沒辦法趨近Z的...只能用最古老的方法02/14 21:51
1F→:上面寫好像是第一屆...明年就會有考古題了...02/13 15:45
1F→:解答沒錯,P的CI是用P-hat,但是做假設檢定則要用P002/12 23:05
2F→:所以P的CI跟檢定有可能會出現不一致的情形。02/12 23:05
3F→:上面指的是P的variance部份用的P不一樣02/12 23:07