問題詳情

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

 denote the fraction of blue ballsin the sample. You want to test the competing hypotheses H0: P = 0.4 vs. H1: P ≠0.4. Suppose that you decideto reject 

 Note that the sample of l 000 balls is considered as a large sample. What is thetype I error of this test?
(A)0.178
(B)0.256
(C)0.367
(D) 0.488
(E) 0.519

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