Discussion:
Q: The mean heart rate(beats per minute) for a random sample of 31 patients with congestive heart failure who were given Captopril was 75.2 bpm, and the standard deviation was 2.7 bpm. The random sample of 31 patients who were given Nitroprusside had a mean heart rate of 77.4 bpm and a standard deviation of 2.4 bpm. Test the hypothesis at the .01 level that there's no difference in heart rate for the population of patients given Captpril and those give Nitroprusside.