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10.1 Exercise 31

Avg difficulty 2.5

A high school principal claims that 30 percent of student athletes drive themselves to school, while 4 percent of nonathletes drive themselves to school. In a sample of 20 student athletes, 45 percent drive themselves to school. In a sample of 35 nonathlete students, 6 percent drive themselves to school. Is the percent of student athletes who drive themselves to school more than the percent of nonathletes?

OpenStax Statistics, 10.1 Two Population Means with Unknown Standard Deviations, exercise 31

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