作者mos9309182 (幻浅季也)
看板Statistics
标题[问题] 急问交大研究所考古题
时间Fri Mar 12 00:06:13 2010
题目:
Suppose that independent random samples of size n from two normal populations
with the known varinces (sigma1)^2 and (sigma2)^2 are to test the null
hypothesis M1-M2=d0 against the alternative hypothesis M1-M2=d1, where d0<d1
Find the required sample size.
我实在不知道该如何下手,
还请板上高手指点!
(不好意思,初到贵版,若有冒犯还请见谅)
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