If you want to enter observed and expected values for each category (or your analysis is not exactly four categories in a 2x2 contingency table) you needthis chi-square calculatorinstead. Performing contingency tests? We can help. Sign up for more information on how to perform contingency tests...
This calculator will compute both the exact hypergeometric probability and the exact two-tailed probability of obtaining a distribution of values in a 2x2 contingency table using Fisher's exact test, given the number of observations in each cell. ...
Statisticians have developed many ways to analyze a 2x2 contingency table to obtain a P value. Which test should you choose? Conventional advice In the days before computers were readily available, people analyzed contingency tables by hand, or using a calculator, using chi-square tests. But the...