3. In a study on the effectiveness of weight loss programs, 47 subjects who were at least 20% overweight took part in a group support program for 10 weeks. The weight of each subject was taken at the start of the program and 6 months after the end of the program. The paired t-test was used to assess whether the average weight loss is statistically significant. The article reporting the study indicates that the subjects lost a significant amount of weight over time, t (46) = 4.68, p