A sample of n = 16
participants is obtained, and each person’s tolerance for pain is tested
before and after a 50-minute session of aerobic exercise. On average, the
pain tolerance for this sample is MD
= 10.5 points higher after exercise than it was before. The SS the sample of the difference
scores is SS = 960. Do the data
indicate that exercise produces a significant increase in pain tolerance?
Use a one-tailed test with α = .01.