Many people believe that students gain weight as freshmen in college. To determine if this is true, a student randomly sampled 100 freshmen. Each was weighed when college started in the fall and again when they left for home after the spring term. Which test is appropriate to use to determine if students weigh more at the end of their freshman year compared to the beginning of their freshmanyear, on average?
A. paired t-test
B. two-sample t-test
