Summer weight-loss camp. Camp Jump Start is an \(8\)-week summer camp for overweight and obese adolescents. Counselors develop a weight-management program for each camper that centers on nutrition education and physical activity. In a study published in Pediatrics. Vol. 125. No 4. April 2010, the body mass index (BMI) was measured for each of \(76\) campers both at the start and end of camp. Summary statistics on BMI measurements are shown in the table. Starting BMI Ending BMI Paired Differences | Mean \(\mu_1 = 34.9\) \(\mu_231.6\) \(\mu_d = 3.3\) Standard Deviation \(s_1 6.9\) \(s_2 = 6.2\) \(s_d 1.5\)