Mastering Development

Custom hypothesis testing with Contrast statement in SAS

I have a model that is looking at the impact of a policy exposure, exposure period, and race on surgery rates. Each of the first three variables (exposure=E, period=P, and race=R) are dichotomous (0/1) variables. My regression equation is: y = b(0) + b1P + b2E + b3R + b4EP + b5PR + b6ER + […]