作者jackoyu (伟下列资料正确填写并回숩
看板Grad-ProbAsk
标题[商管] [统计]-逢甲91-统计与精算-动差母函数 and 检定
时间Mon Nov 16 16:27:35 2009
1.
N ~ Poisson(λ=5)
Xi's ~Exp(λ=3)
S=X1+.....+XN
Xi, N 独立
求 the monment generating function of S.
拜托强者，帮忙解答一下疑问，谢谢!!
2.
You suspect one of the die have been modified. You roll the suspected
die 50 times. The observed distribution is provided below,
Value(x) 1 2 3 4 5 6
observed 13 12 10 8 4 3
let p=P(X=1/6),test H0:p<= 1/6 H1:p> 1/6
(a) find the exact p-value
(b) Use normal approximayion to find the p-value
(c) Find a rejection region for test at α=0.05,and the power function.
这题要怎麽做呢?是要用齐一性检定吗? 还是 ..... 谢谢!!
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※ 编辑: jackoyu 来自: 140.122.140.126 (11/16 16:56)
※ 编辑: jackoyu 来自: 140.122.140.126 (11/16 16:59)
1F：推 locust0923:1.Ms(t)=Mn(ln(Mx(t)),M为该分配之动差 2.用齐一性 11/16 17:26
2F：推 ksherry:用p近似常态做 11/17 00:13