Compara mètodes

	Estadístiques descriptives robustes	Test t robust per a mostres independents
Camp	Estadística	Estadística
Família	Hypothesis test	Hypothesis test
Any d'origen	1960s–1970s	1974–1990s
Autor original	John W. Tukey, Peter J. Huber, Frank Hampel	Rand R. Wilcox; Karen K. Yuen (trimmed-mean form)
Tipus	Resistant summary measures	Robust parametric mean comparison
Font seminal	Tukey, J. W. (1977). Exploratory Data Analysis. Addison-Wesley. ISBN: 978-0201076165	Wilcox, R. R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Academic Press. ISBN: 978-0123869838
Àlies	resistant statistics, outlier-resistant summary statistics, robust summary measures, robust location and scale estimation	Yuen's t-test, trimmed-mean t-test, Winsorized t-test, robust two-sample test
Relacionats	5	2
Resum	Robust descriptive statistics summarize the location, spread, and shape of a dataset using measures that remain meaningful even when a fraction of the data contains outliers or severe departures from normality. Core tools include the median, trimmed mean, interquartile range (IQR), and median absolute deviation (MAD), all of which are resistant to contamination that would distort the classic mean and standard deviation.	The robust independent samples t-test compares the central tendency of two independent groups using trimmed means and Winsorized variances, making it substantially less sensitive to outliers and non-normality than the classical Student or Welch t-test. The most widely used form is Yuen's test, which also accommodates unequal variances across groups.