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功效函数
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功效函数
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理学
假设检验
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power function
功效函数
在应用假设检验进行判断时,不可避免会犯如下两种错误:零假设是对的,却拒绝了零假设(第一类错误);相反,零假设是错的,却接受了零假设(第二类错误)。人们希望犯两类错误的概率都尽可能地小,但实际上做不到这一点,这就需要功效函数来说明。简单来讲,功效函数就是不犯第二类错误的概率,通常人们在做检验时,其策略是在控制住第一类错误(检验水平)的前提下,尽量让功效函数达到最大。
Mathematics
>数理统计>假设检验>释义
power function
功效函数
power function
幂函数
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;功效函数
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