In the Physician's Health Study, 22,701 male physicians participated in a study to determine whether taking a daily low-dose aspirin reduced the risk of heart attacks. The men were randomly assigned to two groups and the study was double-blind. After five years, of 104 the 11,037 men taking a daily low dose aspirin had had a heart attack while 189 of the 11,034 men taking a placebo had had a heart attack.1Does taking a daily low-dose aspirin reduce the risk of heart attacks?
State the null and alternative hypotheses. Use subscripts 1 for the treatment group (taking the daily low-dose aspirin) and 2 for the control group (taking a placebo).
test statistic = ?
P- Value = ?
What is the conclusion?
Does taking a daily low-dose aspirin reduce the risk of heart attacks?