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， · 2021年09月22日

这个type1 error 和 type 2 error 到底是啥意思

  1. CFA I
  2. Quantitative

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.

这个type1 error 和 type 2 error 到底是啥意思

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4 个答案

星星_品职助教 · 2022年09月22日

@blade8932 类似的问题可以直接向辅导员反应。

blade8932 · 2022年09月22日

超前考核，品职里面出现很多次，当期题目考的是下期的内容。

星星_品职助教 · 2021年10月11日

@，

好的~如果再遇到类似题目和视频不匹配的情况可以联系一下班级群里的辅导员。辅导员会联系负责视频的同事修改~

星星_品职助教 · 2021年09月22日

同学你好，

文字简单说一下，

Type I error是拒绝了正确的原假设的概率。Type I error=significance level=α

Type II error是没有去拒绝错误的原假设的概率。

具体的定义和应用可以复习一下基础班的相应视频。


， · 2021年10月11日

好的老师，我说咋一点不知道，在后面视频讲的，题串到前面的视频里了，也没差几个，谢谢老师耐心讲解

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