Pearson's chi-squared test or Pearson's χ 2 {\displaystyle \chi ^{2}} test is a statistical test applied to sets of categorical data to evaluate how likely...

table). The test is valid when the test statistic is chi-squared distributed under the null hypothesis, specifically Pearson's chi-squared test and variants...

distribution Generalized chi-squared distribution Noncentral chi-squared distribution Pearson's chi-squared test Reduced chi-squared statistic Wilks's lambda...

which the G-tests are based. The general formula for Pearson's chi-squared test statistic is χ 2 = ∑ i ( O i − E i ) 2 E i   . {\displaystyle \chi ^{2}=\sum...

Median test (also Mood’s median-test, Westenberg-Mood median test or Brown-Mood median test) is a special case of Pearson's chi-squared test. It is a...

whether outcome frequencies follow a specified distribution (see Pearson's chi-square test). In the analysis of variance, one of the components into which...

suggested a correction for continuity that adjusts the formula for Pearson's chi-squared test by subtracting 0.5 from the difference between each observed value...

confidence intervals are used for matched pairs binary data. Pearson's chi-squared test Chi-squared distribution McNemar, Quinn (June 18, 1947). "Note on the...

variables, giving a value between 0 and +1 (inclusive). It is based on Pearson's chi-squared statistic and was published by Harald Cramér in 1946. φc is the...

Kolmogorov–Smirnov test, adjusted for when also estimating the mean and variance from the data), Shapiro–Wilk test, and Pearson's chi-squared test. A 2011 study...