11.6 Refer   to Exercise 11.2. Which pairs of mean examination times differ significantly   (4 physicians)? Physicians 11.2 One particular morning, the length of time   spent in the examination rooms is recorded for each patient seen by each   physician at an orthopedic clinic. Does the data prove a significant   difference in mean times? Physicians FIGURE 11.12 Physician 1 Physician 2   Physician 3 Physician 4 34 33 17 28 25 35 30 33 27 31 30 31 31 31 26 27 26 42   32 32 34 33 28 33 21 26 40 29