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ziduozhixia · 2021年08月02日

如果是双尾检验..拒绝原假设怎么描述?

NO.PZ2018062016000123

问题如下:

Which of the following statements about one-side hypothesis test is most correct ?

选项:

A.

We reject the null only if the evidence indicates that the population parameter is smaller or larger than the critical value.

B.

Do not have Type I error.

C.

We reject the null only if the evidence indicates that the test statistic is greater than or less than the critical value.

解释:

C is correct. By definition, one-side hypothesis test also called one-tailed hypothesis test, which reject rule is reject the null only if the evidence indicates that the test statistic is greater than or less than the critical value.

选项c感觉更像是双尾检验的描述呢?如题,如果是双尾检验,怎么描述
1 个答案

星星_品职助教 · 2021年08月02日

同学你好,

描述不需要改。

无论是单尾还是双尾检验,拒绝原假设的原则都是|test statistics|>|critical value|,C选项的描述符合这个规律。

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