Question: A new tranquilizer given to 16 patients reduced their pulse rate on the average by 4.36 beats per minute with a standard deviation of 0.36 beat per minute. Assuming that the data represents a random sample form a normal population, test the pharmaceutical company’s claim that on the average its new tranquilizer reduces a patient’s pulse rate by 4.5 beats per minute at level of significance α = 0.10 and state the conclusion.