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陆景仰Joanna · 2018年06月17日

问一道题：NO.PZ2015120604000131 [ CFA I ]

  1. CFA I
  2. Quantitative

问题如下图：

    

选项：

A.

B.

C.

解释：


请问这道题目到底是选择b还是c呢？


以及可以说一下是type 1 和type 2 错误是在讲义的哪里吗？

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2 个答案

源_品职助教 · 2018年06月18日

选择B，因为不需要用用1去减。 第一类错误就是α。

源_品职助教 · 2018年06月17日

可以参考下下图的讲义，第一类错误就是α。而1-第二类错误才等于检验的势

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