作者Victor12 (Victor)
看板Grad-ProbAsk
标题[商管] [统计]-93暨南 资管所
时间Mon Dec 28 20:10:49 2009
A bowl contain two red balls,two white balls,and two ball that are either red
or white.Let p denote the probability of drawing a red ball from the bowl.
We shall test the null hypothesis Ho:p=1/2 against the alternative hypothesis
Ha:p≠1/2. Draw 4 balls at random from the bowl one at time and with replace.
Let x denote the number of red balls drawn.
求拒绝域?
Ans: c:{x=0,4}
我想问的是为什麽拒绝域会是0和4？
如果把题目改成两红球,两白球和一颗不是红就是白,Ho:p=3/5,Ha:p=2/5,其他都不变
拒绝域又会是多少？
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