教育測驗與統計--區間估計 - 考試
By Liam
at 2013-06-03T12:14
at 2013-06-03T12:14
Table of Contents
在計算兩母體的區間估計時,
如果是題目X bar 1=64, X bar 2=74,用Z考驗
應該是(X bar 1-X bar 2) =(64-74)吧?
請問可以用74-64去計算區間估計嗎?
但是這樣算出來的區間兩個不相同
想請問哪一個才是正確的
還是因為不影響信賴區間的長度所以兩個都可以??
第一次發文,請多包涵,謝謝!!!
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