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刘茜娅 · 2022年02月27日

倒推查表?

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 accept the null when it 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

所以这个是根据置信区间99%这个数字去查表,倒推出的2.33,这么个意思吗?

1 个答案
已采纳答案

星星_品职助教 · 2022年02月27日

同学你好,

基本正确。

这道题是根据1%的significance level和one-tail test查表。也就是根据单尾面积为1%查表。可以得到关键值为2.33.

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