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熊熊先生 · 2017年10月16日

没看懂答案。问一道题:NO.PZ2015120604000178 [ CFA I ]

问题如下图:
选项:
A.
B.
C.
解释:
2 个答案
已采纳答案

源_品职助教 · 2017年10月17日

这题不需要查表,正态分布1%5%10%,单尾以及双尾对应的分位点最好背下来,对于这六个常用分位点考试可能不会给表格。被考到的概率不低。

源_品职助教 · 2017年10月16日

先计算标准误,然后直接套用统计量计算公式得到检验统计量1.96

单尾1.96分位点对应的Z分布面积概率为2.5%

熊熊先生 · 2017年10月17日

所以要查表??考的概率高么?

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