قارن الطرق

	اختبار المتوسط المشذب (اختبار يوين)	اختبار مان-ويتني يو (Mann-Whitney U test)
المجال	الإحصاء	الإحصاء
العائلة	Regression model	Hypothesis test
سنة النشأة	1974	1947
صاحب الطريقة	Karen K. Yuen	H. B. Mann & D. R. Whitney
النوع	Robust two-group comparison	Nonparametric two-group comparison
المصدر التأسيسي	Yuen, K. K. (1974). The Two-Sample Trimmed t for Unequal Population Variances. Biometrika, 61(1), 165-170.	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.
الأسماء البديلة	Yuen's test, Yuen-Welch test, robust mean comparison, kırpılmış ortalama testi	Mann-Whitney-Wilcoxon test, Wilcoxon rank-sum test, Mann-Whitney U Testi
ذات صلة	4	4
الملخص	The trimmed mean test compares two groups using trimmed means, which discard a fixed proportion of the most extreme observations in each tail before averaging. Introduced by Karen K. Yuen in 1974, it is a robust alternative to the classical t-test when the data are non-normal or contain outliers and the population variances are unequal.	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.