After observing the results of the test in Exercise 13.211, a statistics practitioner organized another experiment. People were matched according to gender, height, and weight. One member of each...

After observing the results of the test in Exercise 13.211, a statistics practitioner organized another experiment. People were matched according to gender, height, and weight. One member of each matched pair then exercised vigorously twice a week and the other member exercised moderately four times per week. The weight losses were recorded. Can we infer that people who exercise moderately lose more weight?

Exercise 13.211

Most people exercise in order to lose weight. To determine better ways to lose weight, a random sample of male and female exercisers was divided into groups. The first group exercised vigorously twice a week. The second group exercised moderately four times per week. The weight loss for each individual was recorded. Can we infer that people who exercise moderately more frequently lose more weight than people who exercise vigorously?