3. Merck redid all analyses, and in the end, drew the following conclusions: "After stratifying by race, Enalapril was highly effective in reducing blood pressure [as compared to a placebo]." Explain how this could be true, given the information in question 2, above. Was it appropriate for Merck to draw this conclusion? In general, what do epidemiologists and statisticians need to be aware of when looking at and reporting adjusted measures