Let X be the number of successes in n independent trials with
the probability of success on each trial equal to p .
The null hypothesis H0:p = 0.5 is to be tested against the alternative
hypothesis H1:p > 0.5 .
The null hypothesis is rejected if X = n .For what value of p is
the power function of this test equal to 0.9 ?
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iid
請問一開始 是要先設定 X ~ B ( n . p) ?
再去檢定 型2誤差 B = 0.1
n x n-x 代數值p=0.5去算 ,由題目發現 x=n n 1
( ) p (1-p) ===================================>0.5 (1-0.5) =0.1
x
解 n 再 來..?!
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