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...

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...

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...

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

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

involves the observation that Pearson's chi-squared test is an approximate test. Suppose Pearson's chi-squared test is used to ascertain whether a six-sided...

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...

k_{n}}p_{1}^{k_{1}}\cdots p_{n}^{k_{n}}} Testing deviation from the HWP is generally performed using Pearson's chi-squared test, using the observed genotype frequencies...

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...

statistics, Yates's correction for continuity (or Yates's chi-squared test) is a statistical test commonly used when analyzing count data organized in a...

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...

g. the Z-test, the F-test, the G-test, and Pearson's chi-squared test; for an illustration with the one-sample t-test, see below. If the models are not...

variety of statistical tests including Pearson's chi-squared test, the G-test, Fisher's exact test, Boschloo's test, and Barnard's test, provided the entries...

Kolmogorov–Smirnov_test#Two-sample_Kolmogorov–Smirnov_test Kuiper's test Median test Pearson's chi-squared test Student's t-test#Two-sample_t-tests Welch's t-test Tukey–Duckworth...

test Kuiper's test Likelihood-ratio test Median test Mann–Whitney U test Pearson's chi-squared test Rank product test Shapiro–Wilk test Statistical hypothesis...

test was analyzed at a significance level of α = 0.05 {\displaystyle \alpha =0.05} . The p-value was introduced by Karl Pearson in the Pearson's chi-squared...

as the chi-squared statistic in the Pearson's chi-squared test. Fisher information Uniformly most powerful test Score (statistics) Sup-LM test Rao, C...

Karl Pearson, in his Pearson's chi-squared test, using the chi-squared distribution and notated as capital P. The p-values for the chi-squared distribution...

hypothesis can also be tested by using Pearson's chi-squared test   χ 2 = ∑ i = 1 k ( x i − E i ) 2 E i   {\displaystyle ~\chi ^{2}=\sum _{i=1}^{k}{\frac...

probabilities, was later proposed by Jerzy Neyman and Egon Pearson. Pearson's chi-squared test. A hypothesis test using normal approximation for discrete data. Principal...

interval mirrors Pearson's chi-squared test, the Wilson interval with continuity correction mirrors the equivalent Yates' chi-squared test. The following...

results. Tests for paired data include McNemar's test and the paired permutation test. Tests for unpaired data include Pearson's chi-squared test and Fisher's...

magazine of the same name Pearson product-moment correlation coefficient, commonly referred to as "Pearson's r" Pearson's chi-squared test, a statistical procedure...

some values needed when performing a familiar statistical test, Pearson's chi-squared test. This nomogram demonstrates the use of curved scales with unevenly...

respectively disease continuations and not fixed in advance. Pearson's chi-squared test (without any "continuity correction") is the correct choice for...

information criterion Hosmer–Lemeshow test, a quality of fit statistic that can be used for binary data Pearson's chi-squared test, an alternative quality of fit...

as the basis for alternative tests that are much quicker to compute, such as Pearson's chi-squared test and the G-test. However, for small samples these...

probabilities". Modern significance testing is largely the product of Karl Pearson (p-value, Pearson's chi-squared test), William Sealy Gosset (Student's...

a member of cluster C and does contain term T; and so on. The Pearson's chi-squared test can be used to calculate the probability that the occurrence of...