Test F Di Fisher. The identity function gray is also shown for comparison. This is a fisher exact test calculator for a 2 x 2 contingency table.
Imagine for example that you have collected data on smoking habits and want to find out whether smoking is related to gender then you could have male and female as the two. With small sample sizes chi square is not accurate with or without the correction. You can overwrite category 1 category 2 etc.
In statistics the fisher transformation aka fisher z transformation can be used to test hypotheses about the value of the population correlation coefficient ρ between variables x and y.
The fisher exact test tends to be employed instead of pearson s chi square test when sample sizes are small. The yates continuity correction is designed to make the chi square approximation better. The degrees of freedom are n a 1 for the numerator and n b 1 for the denominator. The first stage is to enter group and category names in the textboxes below.
