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 ...
technologynetworks

The Chi-Squared Test

What is the chi-squared test? The chi-squared test, often written as χ 2 test, is a statistical hypothesis test used in the analysis of categorical variables to determine whether observed data are ...
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, ...
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

382: A Note on the Chi-Square Test for Pair-Matched Samples

This is a preview. Log in through your library . Abstract In a departure from previous comparisons of the relative efficiency of pair-matched with independent samples, this note considers matching as ...
JSTOR Daily

Aggregation and the Pearson Chi-Square Statistic for Homogeneous Proportions and Distributions in Ecology

This is a preview. Log in through your library . Abstract The null hypothesis that the proportions or relative abundance among j mutually exclusive categories (e.g., species or sizes) is the same for ...