Chapter 14.1, Problem 34E

Applying What You’ve Learned.

In Exercises 31 – 34, first group the data using an appropriate starting point and a class width of 10. Then determine the frequencies and construct a histogram similar to graph D (from Exercises 23 – 26).

Exercise and academic performance. After reading a report from the American Society of Exercise Physiologists, your school has implemented a test program to see if there is a relationship between regular exercise and academic achievement. List E is the set of 40 test scores of those who exercised; N is the set of 40 scores of those who did not.

E:	84, 77, 77, 86, 72, 61, 74, 76, 85, 60, 66, 91, 80, 78, 89, 80, 88, 64, 69, 88, 77, 94, 76, 84, 77, 74, 62, 68, 85, 60, 70, 95, 69, 77, 81, 88, 74, 63, 87, 90
N:	73, 67, 88, 77, 71, 88, 69, 78, 93, 73, 74, 82, 64, 69, 78, 73, 75, 69, 68, 63, 67, 76, 65, 77, 80, 80, 71, 79, 69, 73, 73, 86, 85, 75, 70, 64, 64, 85, 73, 70