[問題] 請問一題關於拒絕域的考古題
You are testing the hypothesis p=0.7 and have decided to reject this
hypothesis if after 15 trials you observe 14 or more successes. If the
null hypothesis is true and you observe 13 successes, then which of the
following will you do?
(A) Correctly fail to reject H0.
(B) Correctly reject H0.
(C) Commit a type I error.
(D) Commit a type II error.
(E) None of the above are correct.
手邊上大碩的解答寫D，而網路上google到的解答寫C
( http://tinyurl.com/yctdae2 第30題)
我想問的是，此題的拒絕域為 P(x >= 14) 即 Reject H0
第三行已表明這次的實驗只有13次成功，那就是非拒絕域
而且又寫 null hypothesis is true
我認為解題應為 P( Do not reject H0 | H0 is true) 的時候不會有型一或型二錯
因為型二錯應為 P( Do not reject H0 | H1 is true )
請問此題應如何解釋呢? 不好意思這個有點急 >"<
麻煩好心人解答一下，謝謝回答
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