Use the data regarding heart rates collected in data project 6 of Chapter 2 for this problem. Use the sample mean and standard deviation as estimates of the population parameters. For the before-exercise data, what heart rate separates the top10% from the other values? For the after-exercise data, what heart rate separates the bottom 10% from the other values? If a student were selected at random, what would be the probability of her or his mean heart rate before exercise being less than 72? If 25 students were selected at random, what would be the probability that their mean heart rate before exercise was less than 72?

Data from in Project 6

Have each person in class take his or her pulse and determine the heart rate (beats in 1 minute). Use the data to create a frequency table with 6 classes. Then have everyone in the class do 25 jumping jacks and immediately take the pulse again after the activity. Create a frequency table for those data as well. Compare the two results. Are they similarly distributed? How does the range of scores compare?