1) from Chi-square test for independence, homogeneity, or goodness of fit,
2) Enter observed frequencies into the table and click "Calculate" to get results,
3) The calculator will display degrees of freedom, chi-square statistic, and p-value.
What is a Chi-square Test?
The chi-square test is a statistical method used to determine if there is a significant association between categorical variables. Common applications include:
Independence: Testing if two categorical variables are related.
Homogeneity: Comparing distributions across groups.
Goodness of Fit: Checking if observed data matches expected proportions.