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gptkbp:instanceOf
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statistical analysis
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gptkbp:alsoKnownAs
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chi-square test
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gptkbp:alternativeForSmallSamples
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gptkb:Fisher's_exact_test
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gptkbp:application
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genetics
contingency tables
survey analysis
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gptkbp:appliesTo
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categorical data
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gptkbp:assumes
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independent observations
sufficiently large sample size
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gptkbp:category
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nonparametric test
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gptkbp:decision
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compare p-value to significance level
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gptkbp:degreesOfFreedom
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number of categories minus one
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gptkbp:distributionUnderNull
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gptkb:chi-squared_distribution
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gptkbp:field
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gptkb:mathematics
statistics
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gptkbp:form
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sum of (observed - expected)^2 / expected
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https://www.w3.org/2000/01/rdf-schema#label
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Pearson chi-squared test
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gptkbp:introducedIn
|
1900
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gptkbp:limitation
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sensitive to small expected frequencies
not suitable for small sample sizes
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gptkbp:namedAfter
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gptkb:Karl_Pearson
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gptkbp:output
|
p-value
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gptkbp:publishedIn
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gptkb:Philosophical_Magazine
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gptkbp:relatedTo
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gptkb:Fisher's_exact_test
gptkb:G-test
gptkb:likelihood-ratio_test
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gptkbp:requires
|
expected frequencies
observed frequencies
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gptkbp:statistic
|
chi-squared statistic
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gptkbp:usedFor
|
goodness of fit
testing independence of categorical variables
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gptkbp:bfsParent
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gptkb:Mantel-Haenszel_chi-squared_test
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gptkbp:bfsLayer
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6
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