A hospital is comparing three different drugs to determine if there is a difference in the number of hours of pain relief each provides on average for patients with pain after surgery. The mean pain relief (in hours) for each drug and SPSS ANOVA output are given below.

Heat 1 2 3 51.92 53.25 53.10 51.22 51.29 52.17 53.20 50.11 52.90 53.10 53.12 51.19 52.97 51.53 52.96 50.34 52.10 54.22 53.91 51.78 51.89 52.85 52.55 52.25 54.17 51.22 54.58