WARNING: 50% of the cells have expected counts less than 5. (Asymptotic) Chi-Square may not be a valid test.

Large contingency tables arise in many contexts but especially in the collection of survey and census data by government statistical agencies. Because the vast majority of the variables in this ...

PROC FREQ computes Cochran-Mantel-Haenszel statistics, controlling for Gender. For stratified 2×2 contingency tables, these statistics include estimates of the common relative risk and the Breslow-Day ...

For the quasi-symmetry (QS) model, applicable to square contingency tables with commensurable classification variables, it is proved that under certain conditions, it is the closest model to symmetry ...