Method: Mann Whitney U Test

Methods: T-test, Outlier, Boxplot, Mann Whitney U Test, Summary Statistics,
Topics: Health, Medical,
Datafile Name: Nursing Home Data

Acorn is the acronym for Association of Community Organizations for Reform Now.
These data were presented by Acorn to a Joint Congressional Hearing on discri-
mination in lending.  Acorn concluded that "banks generally have exhibited a per-
vasive pattern of lending...

Methods: Outlier, T-test, Mann Whitney U Test, ANOVA,
Topics: Economics,
Datafile Name: Waste Run-up

The Mann-Whitney test is available when the normal assumption underlying the Student t-test is in question. are outliers in the data. The data on weekly run-up (or waste percent) for five suppliers of the Levi-Strauss clothing plant in Albuquerque provides an example. Presence of outliers violate...

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