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The drug Finasteride is marketed to help protect against male pattern baldness, and it also may protect against prostate cancer. A large sample of healthy
The drug Finasteride is marketed to help protect against male pattern baldness, and it also may protect against prostate cancer. A large sample 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. Prostate cancer was found in 804 of 4368 men taking Finasteride and in 1145 of the 4692 men taking a placebo. A 95% confidence interval for the risk difference (proportion of subjects on Finasteride who develop cancer - proportion of subjects on placebo who develop cancer) is (0.077, -0.043). Does this confidence interval provide evidence of an association between development of cancer and taking Finasteride? Justify your response. 0 No, it does not provide evidence of an association since the null value of 0 is in the interval. 0 No, it does not provide evidence of an association since the null value of 1 is not in the interval. 0 Yes, it does provide evidence of an association since the null value of 1 is not in the interval. 0 No, it does not provide evidence of an association since the null value of 0 is not in the interval. 0 Yes, it does provide evider" \" \" "\"'=\"'" since the null value of 0 is not in the interval. Screenshot
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