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作者 asglay 在 PTT [ Statistics ] 看板的留言(推文), 共7則
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Re: [問題] 兩個獨立母體變異數的檢定
[ Statistics ]20 留言, 推噓總分: +1
作者: asglay - 發表於 2013/03/24 16:59(11年前)
3Fasglay:X有點不懂為什麼C1和C2背後的H0不一樣?03/24 22:18
4Fasglay:對,我的意思就是,是否不只使用x_bar這一種方法來估計03/24 22:20
7Fasglay:我可以得到x_bar的分布是N(mu,sigma^2/n), 但我還是看不出03/24 23:41
8Fasglay:為什麼算拒絕域時,要用P(X_bar > C)而不能用P(W > C)?03/24 23:43
9Fasglay:由上述W的定義,可以看出W跟x_bar一樣03/24 23:45
10Fasglay:都是以mu為平均值的Normal 分布03/24 23:46
[問題] 假設檢定-該用Z檢定還是t檢定?
[ Statistics ]4 留言, 推噓總分: +2
作者: asglay - 發表於 2013/03/19 23:07(11年前)
4Fasglay:謝謝~03/22 16:11
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