生物統計 關於查表一點問題 - 考試

By Hazel
at 2013-07-05T20:58
at 2013-07-05T20:58
Table of Contents
[考題] 國考歷屆考題與考題觀念討論(書裡看到的選這個)請附上想法、出處
在用t test時 alpha=0.05
虛無假說:母體平均數M1-M2=0
這時候會查t(0.975) >>因為是雙尾
變異數檢定時
虛無假說:sigma A^2=sigma B^2 alpha=0.05
邊界要查F(0.975)的表
但為甚麼ANOVA時
虛無假說M1=M2=M3... ; alpha=0.05
最後查的表是F(0.95)??
考題會算 可是一直不知道原因?
--
在用t test時 alpha=0.05
虛無假說:母體平均數M1-M2=0
這時候會查t(0.975) >>因為是雙尾
變異數檢定時
虛無假說:sigma A^2=sigma B^2 alpha=0.05
邊界要查F(0.975)的表
但為甚麼ANOVA時
虛無假說M1=M2=M3... ; alpha=0.05
最後查的表是F(0.95)??
考題會算 可是一直不知道原因?
--
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