A clinic provides a program to help their clients lose weight and asks a consumer agency to investigate the effectiveness of the program. The agency takes a sample of 15 people, weighing each person in the sample before the program begins and 3 months later.

Which hypothesis test methods would be appropriate for this data set? Select all that apply.

A. Independent t test

B. Paired t test

C. ANOVA

D. Nonparametric paired test