STAT 250 Midterm: STAT 250 Exam 1
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I hereby state that i have used nothing to aid me on this exam except one single-sided page of notes, a calculator, and my own brain. The drug finasteride is marketed as propecia to help protect against male pattern baldness, and it also may protect against prostate cancer. A large sample1 of healthy men over age. 55 were randomly assigned to receive either a daily finasteride pill or a placebo. The study lasted seven years and the men had annual check-ups and a biopsy at the end of the study. 1thompson, i. , et. al. , the in uence of nasteride on the development of prostate cancer, new england. Journal of medicine, july 17, 2003; 349(3): 215-24. Practice exam 1, page 3 of 6: inference. We calculated a point estimate for the di erence in proportions in part 1(e), but as with all good science, we also want an interval estimate. Figure 1 provides the relevant bootstrap distribution based on 1000 simulations.
