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 test statistics.

and that this follows a chi-squared distribution with (rows-1)*(columns-1) degrees of freedom under the null hypothesis, where rows and columns refer to the number of rows and columns in the ...

The continuity-adjusted chi-square statistic for 2 ×2 tables is similar to the Pearson chi-square, except that it is adjusted for the continuity of the chi-square distribution. The continuity-adjusted ...