5} Fifteen randomly selected women were asked to work on the stair master for three minutes. After the three minutes, their pulses were measure and the following data were obtained11712696102104113981131361001349211691102Find the point estimator and the 95 % confidence interval for the mean pulse

{6} Find a 90 % confidence interval for the mean increase in heart rate in a sample of trained athletes subjected to a standard workload. Suppose that the standard deviation of the population is know from earlier studies to be 15 beats per minute, and that 25 athletes participate in the current study, and that the sample mean heart rate increase is 85 beats per minute