Simple Interactive Statistical Analysis
The Fisher 2 by 5 procedure has moved to this location.
This contingency table program is a generalization of the Fisher exact test and it calculates an exact probability value for the relationship between two variables, as found in a two by five crosstable. The procedure will handle smaller tables too. The program calculates the difference between the data observed and the data expected, considering the given marginals and the assumptions of the model of independence. It works exactly the same as the Chi-square test for independence, however, the Chi-square gives only an estimate of the true probability value, an estimate which might not be very good in the case of the marginals being very uneven or with a small value (less than five) in one of the cells. In that case this Fisher table program is a good alternative for the Chi-square.