The chi-squared test for association is applied to a cross-tabulation of frequencies in the two variables you would like to compare. This is called a contingency table, where each combination of a row ...

Chi-Square Contingency Analysis This applet allows users to conduct a chi-square test using a dataset displayed in a contingency table. Simulated results show the resulting sampling distribution of ...

The chi-square goodness-of-fit test examines whether the children's hair color has a specified multinomial distribution for two regions. The hypothesized distribution for hair color is 30 percent fair ...

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

Explain the basic idea of a chi-squared test, namely that the test statistic is based on the observed minus expected frequencies in each cell, and that this follows a chi-squared distribution with ...

The chi-squared test, often written as χ2 test, is a statistical hypothesis test used in the analysis of categorical variables to determine whether observed data are different from expectations. In ...