Chi-Square (χ2) Statistic: What It Is, Examples, How and When to Use the Test

A chi-square (χ2) statistic is a test that is used to measure how expectations compare to actual observed data or model ...
Simon Fraser University

Chi-Square Tests and Statistics

When you specify the CHISQ option in the TABLES statement, PROC FREQ performs the following chi-square tests for each two-way table: Pearson chi-square, continuity-adjusted chi-square for 2 ×2 tables, ...
Nature

chi square test / goodness of fit; chi-square; .2; chi square

A statistical test that allows one to determine whether observed quantities of a specific characteristic differed from the expected value purely by chance.
Simon Fraser University

Example 2: Computing Chi-Square Tests for One-Way Frequency Tables

computes a chi-square goodness-of-fit test for specified proportions. The chi-square goodness-of-fit test examines whether the children's hair color has a specified multinomial distribution for two ...
JSTOR Daily

A Modified Chi-Square Test of Independence against a Class of Ordered Alternatives in an r × c Contingency Table

The Canadian Journal of Statistics / La Revue Canadienne de Statistique A modified chi-square test statistic is constructed for testing the hypothesis of independence in a two-way contingency table ...
JSTOR Daily

Do the Chi-Square Test and Fisher's Exact Test Agree in Determining Extreme for 2 × 2 Tables?

There are two common methods for statistical inference on 2 × 2 contingency tables. One is the widely taught Pearson chi-square test, which uses the well-known χ2 statistic. The chi-square test is ...