NO.PZ2015120604000131
问题如下：
Which of the following descriptions is the least accurate about hypothesis testing?
选项：
A.
A Type II error refers to fail to reject when the null is false.
B.
A one-tailed test with a significance level of 1% has z-critical values of 2.58.
C.
One minus the probability of a Type II error equals the power of test .
解释：
B is correct.
A one-tailed test with a significance level of 1% has z-critical values of 2.33
老师，我是用排除法选的B，看了其他同学的问题和您的回复，99% a是0.01对应双尾是2.58，那单尾就是0.005？这怎么查出来的呢
