A medical association randomly selected 10 plastic surgeons and 10 trauma surgeons and asked them how flexible their schedule is on a 1 (not at all flexible) to 9 (very flexible) scale. The data are summarized below:
Plastic surgeons
Mean- 8
Variance- 5
Trauma surgeons
Mean-3
Variance- 1
Which of the statements below is true about this data?
A. All medical professionals have similar levels of flexibility in their schedules.
B. Trauma surgeons have more flexibility than plastic surgeons.
C. Trauma surgeons agree more with each other about their level of flexibility than plastic surgeons.
D. Plastic surgeons agree more with each other about their level of flexibility than trauma surgeons.
E. none of the above