Recall the data from the Physicians Health Study: Of the 11,034 physicians who took the placebo, 189
Question:
Recall the data from the Physicians’ Health Study: Of the 11,034 physicians who took the placebo, 189 suffered heart attacks during the study. Of the 11,037 physicians who took aspirin, 104 had heart attacks.
a. Calculate the observed value of the relative risk of heart attacks comparing physicians who took aspirin daily to those who took the placebo daily.
b. Suppose that you were to calculate a 95% confidence interval for the long-run relative risk of a heart attack comparing aspirin-taking men (like those in the study) to non aspirin-taking men. Will the number 1 lie within this interval? Explain your reasoning.
Step by Step Answer:
Introduction To Statistical Investigations
ISBN: 9781118172148
1st Edition
Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy