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由正态分布成分组成的总体之同质性检验的经验研究
A test of homogeneity is developed that will frequently detect non-homogeneity by means of samples as small as fifty for some populations that are composed of normal components. The development is essentially the same as Smirnov's distribution free tests as discussed in [4].
各条件组标准差不相等时的线性回归
M ANY TEXTBOOKS on statistics consider regression only for the case when the standard deviations of all arrays are the same. The implication is that the formulas given are adequate for the cases met in practice and that, even though the standard deviations are not strictly equal, the usual formulas are still valid. Consequently many applications have been made to date without much attention to the equality of the standard deviations of the arrays.' It has been recognized…