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不等样本量下 Bartlett 方差齐性检验统计量的精确分布AI 解读

An expression is derived for the null density of the Bartlett test statistic for testing equality of variances of n normal populations, when random samples not necessarily of the same size are taken. The expression permits computation of exact Bartlett critical values. As a generalization, an expression is derived for the density of the normalized ratio of an arbitrarily weighted geometric mean to the unweighted arithmetic mean, based on a sample of n independently…

Bartlett 方差齐性检验的精确临界值AI 解读

Consider n normal populations. Random samples of equal size m are taken from each population. It is desired to use the Bartlett procedure to test at level α the hypothesis of equal variances. A method is presented to provide exact critical values of the Bartlett test statistic. Computed exact critical values are tabulated for various (n, d, α), where d = m - 1 denotes the common number of degrees of freedom.