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sarahjia · 2020年03月06日

问一道题：NO.PZ2018062016000130

  1. CFA I
  2. Quantitative

问题如下：

Which of the following statements on the power of a test is most correct?

选项：

A.

The power of a test is the probability of making a Type I error.

B.

The power of a test is the probability of not making a Type II error.

C.

The power of a test has a negative effect with the sample size.

解释：

B is correct. The power of a hypothesis test is the probability of not making a Type II error and it has a positive effect with the sample size.

老师你好，请问关于power of set 这个内容在哪个视频有讲到呢？ 还有就是Type I II error分别是什么呢，谢谢

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星星_品职助教 · 2020年03月06日

同学你好，

Ytpe I&II error都是上课重点讲解的内容，找到对应的视频进行学习就可以了。

power of test也是在Type II error那个知识点下讲的

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