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candally · 2019年02月12日

问一道题：NO.PZ201709270100000302 第2小题 [ CFA II ]

  1. CFA II
  2. Quantitative

* 问题详情，请 查看题干

问题如下图：

选项：

A.

B.

C.

解释：

这道题我怎么区分是否单尾还是双尾，此题单尾的情况跟双尾的情况答案相异，是否题目中出现significant level of 1%，就不区分单双尾了？那双尾的情况是如何？请解惑，谢谢

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菲菲_品职助教 · 2019年02月15日

同学你好，其实这道题目不用区分单尾双尾，直接用p值跟α0.01进行比较就能得出答案啦。

砖尼 · 2021年01月17日

老师请问p-value不管单位双尾都是直接和significance level比吗？

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