請問一題母體平均數差的檢定 - 考試
By Zenobia
at 2015-06-12T15:07
at 2015-06-12T15:07
Table of Contents
出處:統計學700題,p11-12
題目如下:
http://i.imgur.com/o4Ms2GS.jpg
我想請問這題的第1小題
為何不能用一般的pooled-t test
自由度帶n1+n2-2
母體變異數未知但相等(假設)
用Sp平方取代
一定要用書上寫的這個方式來解這一題嗎?
謝謝
--
Sent from my Android
--
題目如下:
http://i.imgur.com/o4Ms2GS.jpg
我想請問這題的第1小題
為何不能用一般的pooled-t test
自由度帶n1+n2-2
母體變異數未知但相等(假設)
用Sp平方取代
一定要用書上寫的這個方式來解這一題嗎?
謝謝
--
Sent from my Android
--
Tags:
考試
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