問題詳情

3. A random draw (with replacement) of 1000 balls from a pool of several million balls is conducted. Each ball is either blue or red. Let p denote the fraction of blue balls in the population. Let

denote the fraction of blue balls in the sample. You want to test thecompeting hypotheses Ho: p = 0.4 vs. H1: p≠0.4. Suppose that you decide to reject

. Note that the sampleof 1000 balls is considered as a large sample. What is the type I etror of this test?
(A)0.197
(B) 0.261
(C) 0.325
(D) 0.413
(E) 0.522

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增