题目
Which of the following statements regarding hypothesis testing is correct?
选项
A.A Type II error is rejecting the null hypothesis when it is true.
B.Reject the null hypothesis if p-value < significance level.
C.The critical z-value for a one-tailed test of significance at the 0.01 level will be either +2.58 or -2.58.
D.The test statistic for hypotheses concerning equality of variances is computed as「huixue_img/importSubject/1564169387135602688.png」
答案
B
解析
The critical z-value for a one-tailed test of significance at the 0.01 level will be either +2.33 or -2.33. The test statistic for hypotheses concerning equality of variances is「huixue_img/importSubject/1564169387206905856.png」 The statement regarding p-value is true. A type II error is failing to reject the null hypothesis when it is actually false.