The Physicians' Health Study randomly assigned 22,071 healthy male physicians at least 40 years old to take either an aspirin every other day or a placebo pill every other day. Of the 11024 physicians who took aspirin regularly for 5 years, 8 had a fatal heart attack and 137 had a nonfatal heart attack. Of the 11047 who took the placebo, 31 suffered a fatal heart attack and 219 had a nonfatal heart attack. Please use 4 decimal places to answer the questions below.
Ans a) 0.0007 0.0028 b)... View the full answer