Abstract
Errors are given for the departure of Bartlett's exact distri-bution for the test of homogeneity of variances for unequal sample sizes from that of equal sample sizes. Let vj
+ 1 denote the size of the jth sample and define a departure number where
Then these errors may be expressed as functions of only three parameters: the number of populations k, the depart-ure number δ and
. Accurate critical values of the test, in the general case with unequal sample sizes, are given when these errors are small.