Refer to the heart rate distribution of Exercise 4.S.16. Suppose we take a random sample of size 400 from this distribution. How many observations do we expect to obtain that fall between 0 and 15?
Exercise 4.S.16
Resting heart rate was measured for a group of subjects; the subjects then drank 6 ounces of coffee. Ten minutes later their heart rates were measured again. The change in heart rate followed a normal distribution, with a mean increase of 7.3 beats per minute and a standard deviation of 11.1.