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loutianru · 2017年11月14日

想问下答案里面的1.8978是什么含义,是怎么算出的?问一道题:NO.PZ2015120604000137 [ CFA I ]

问题如下图:
选项:
A.
B.
C.
解释:
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已采纳答案

源_品职助教 · 2017年11月15日

正态分布对应的单双尾1%5%10%水平下的关键值需要记忆,其他的其头目会给出表格。

源_品职助教 · 2017年11月14日

1.8978代表的是关键值,它不是计算所得,而是依据单双尾类型、显著性水平,分布类型,以及自由度查表所得。

loutianru · 2017年11月15日

那么考试时会给出关键值吗,还是需要背

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