Pearson chi-square, continuity-adjusted chi-square for 2 ×2 tables, likelihood-ratio chi-square, Mantel-Haenszel chi-square, and Fisher's exact test for 2 ×2 tables. Also, PROC FREQ computes the ...

exact Pearson chi-square test, and Fisher's exact test to compare the probability of coronary heart disease for two types of diet computes estimates of the relative risk and 95 percent exact ...