Application and Power of Parametric Criteria for Testing the Homogeneity of Variances. Part IV

Resumo

The application of parametric criteria for testing the homogeneity of variances (Bartlett, Cochran, Fisher, Hartley, Levene, Neyman–Pearson, O’Brien, Link, Newman, Bliss–Cochran–Tukey, Cadwell–Leslie–Brown, the Overall–Woodward Z-test and modified Z-test) is examined, including under conditions such that the standard assumption of normality is violated. A comparative analysis is made of the power of the criteria. The permissible level of significance is estimated for the case in which the distributions of the statistics for the applied tests are unknown.