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Captain America · 2022年09月03日

请问单双尾的拒绝域和查单尾T表和双尾T表是一个概念吗?

NO.PZ2017092702000123

问题如下:

A hypothesis test for a normally-distributed population at a 0.05 significance level implies a:

选项:

A.

95% probability of rejecting a true null hypothesis.

B.

95% probability of a Type I error for a two-tailed test.

C.

5% rejection region in a tail of the distribution for a one-tailed test.

解释:

C is correct.

For a one-tailed hypothesis test, there is a 5% rejection region in one tail of the distribution.

对于单尾的检验(for a one-tailed test),单侧拒绝域是5%。

请问单双尾的拒绝域和查单尾T表和双尾T表是一个概念吗?

1 个答案
已采纳答案

星星_品职助教 · 2022年09月04日

同学你好,

不是。

如果表是单尾的,则无论题干给出的是单尾还是双尾,最终都是要去转化为单尾拒绝域的大小去查表。

如果表是双尾的(很少见),最终都要转化到双尾拒绝域的大小去查表。

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