Question: 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

Scrap Rate (Per Thousand Units)

FIGURE 11.12

Time in Examination Rooms (minutes)

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