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gptkbp:instanceOf
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statistical analysis
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gptkbp:alsoKnownAs
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gptkb:Mann–Whitney_U_test
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gptkbp:alternativeTo
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distributions are not equal
two-sample t-test
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gptkbp:assumes
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independent samples
ordinal or continuous data
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gptkbp:calculationMethod
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ranks all observations
sums ranks for each group
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gptkbp:category
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nonparametric statistics
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gptkbp:field
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biostatistics
psychology
social sciences
statistics
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https://www.w3.org/2000/01/rdf-schema#label
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Wilcoxon rank-sum test
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gptkbp:implementedIn
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gptkb:Python
gptkb:SAS
gptkb:SPSS
R
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gptkbp:introducedIn
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1945
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gptkbp:inventedBy
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gptkb:Donald_Ransom_Whitney
gptkb:Frank_Wilcoxon
gptkb:Henry_Mann
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gptkbp:nullHypothesis
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distributions are equal
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gptkbp:output
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p-value
U statistic
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gptkbp:relatedTo
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gptkb:Kruskal–Wallis_test
gptkb:Wilcoxon_signed-rank_test
gptkb:t-test
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gptkbp:testedBy
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difference in distributions
difference in medians
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gptkbp:type
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nonparametric test
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gptkbp:usedFor
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comparing two independent samples
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gptkbp:bfsParent
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gptkb:Mann-Whitney_U_test
gptkb:Wilcoxon_signed-rank_test
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gptkbp:bfsLayer
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6
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