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Distributions of test statistics of classical tests for homogeneity of variance (Neyman-Pearson, O'Brien, Link, Newman, Bliss-Cochran-Tukey, Cadwell-Leslie-Brown, Overall-Woodward Z-variance and modified Overall-Woodward Z-variance tests) are investigated including a case when the standard assumption of the normality is violated. The comparative analysis of power of the classical tests is carried...
In the paper some statistical tests intended for testing of uniformity have been considered. Distributions of test statistics, the power of tests under different competing hypotheses have been studied. Considered tests have been ranked by the test power. Advantages and disadvantages of individual tests have been shown. Also, it has been shown that the large part of the tests traditionally used for...
Distributions of various parametric and nonparametric tests are studied using methods of statistical modeling. Such tests are designed to test hypotheses for randomness or absence of a trend in dispersion characteristics. Respective studies are carried out for different sample sizes with the tested hypothesis being true. Procedure of interactive simulation of distributions of the test statistics is...
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