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Statements (32)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
statistical analysis
|
| gptkbp:alsoKnownAs |
chi-square test
|
| gptkbp:alternativeTo |
association between variables
|
| gptkbp:application |
genetics
contingency tables survey analysis |
| gptkbp:appliesTo |
categorical data
|
| gptkbp:assumes |
independent observations
sufficiently large sample size |
| gptkbp:calculationMethod |
sum of squared differences between observed and expected frequencies divided by expected frequencies
|
| gptkbp:distributionUnderNull |
gptkb:chi-squared_distribution
|
| gptkbp:field |
gptkb:mathematics
data analysis statistics |
| https://www.w3.org/2000/01/rdf-schema#label |
Pearson's chi-squared test
|
| gptkbp:introduced |
gptkb:Karl_Pearson
|
| gptkbp:introducedIn |
1900
|
| gptkbp:limitation |
not suitable for small expected frequencies
sensitive to sample size |
| gptkbp:nullHypothesis |
no association between variables
|
| gptkbp:relatedTo |
gptkb:Fisher's_exact_test
gptkb:Yates's_correction gptkb:likelihood-ratio_test |
| gptkbp:requires |
expected frequencies
observed frequencies |
| gptkbp:statistic |
chi-squared statistic
|
| gptkbp:symbol |
χ²
|
| gptkbp:type |
non-parametric test
|
| gptkbp:usedFor |
goodness of fit
testing independence |
| gptkbp:bfsParent |
gptkb:Karl_Pearson
|
| gptkbp:bfsLayer |
4
|