A new treatment meant to help those with chronic arthritis pain was developed and tested for its long-term effectiveness. Participants in the experiment rated their level of pain on a 0 (no pain) to 10 (extreme pain) scale at three month intervals. Was the treatment effective? Run an ANOVA and interpret the results. (25 points)

Participant 1 Before (Month 0) Month 3 8 Month 6 2 7 6 5 3 5 7 3 4 6 5 2 5 5 10 2 6 7 9 5 7 8 7 2 4 3