পদ্ধতির তুলনা করুন

	সমজাতীয়তার পরীক্ষা (Levene and Brown-Forsythe Test for Equality of Variances)	Mann-Whitney U test
ক্ষেত্র	পরিসংখ্যান	পরিসংখ্যান
পরিবার	Regression model	Hypothesis test
উদ্ভবের বছর	1960	1947
প্রবর্তক	Howard Levene; Morton B. Brown and Alan B. Forsythe	H. B. Mann & D. R. Whitney
ধরন	Homogeneity of variance test (robust)	Nonparametric two-group comparison
মৌলিক উৎস	Levene, H. (1960). Robust Tests for Equality of Variances. In Contributions to Probability and Statistics: Essays in Honor of Harold Hotelling. Stanford University Press.	Mann, H. B. & Whitney, D. R. (1947). On a test of whether one of two random variables is stochastically larger than the other. Annals of Mathematical Statistics, 18(1), 50–60.
অপর নাম	Levene test, Brown-Forsythe test, homogeneity of variance test, Levene ve Brown-Forsythe Varyans Testi	Mann-Whitney-Wilcoxon test, Wilcoxon rank-sum test, Mann-Whitney U Testi
সম্পর্কিত	5	4
সারসংক্ষেপ	The Levene and Brown-Forsythe test checks whether two or more groups share the same variance (homogeneity of variance). Levene (1960) built the test on absolute deviations from each group mean, and Brown and Forsythe (1974) made it robust to non-normal data by centring on the group median instead.	The Mann-Whitney U test is the nonparametric alternative to the independent samples t-test, comparing two independent groups by ranking all observations together rather than relying on their means. It was introduced by H. B. Mann and D. R. Whitney in 1947 and does not require the data to be normally distributed.