Exercise:
The following data show the operation time of 3 hospitals for the same surgical procedure.
1) Analyze whether there are statistically significant differences among hospitals.
2) If there are significant differences among hospitals, find which hospitals have statistical differences in the operation time.
Hospital A: 57, 45, 77, 55, 54
Hospital B: 58, 42, 41, 50, 47
Hospital C: 67, 67, 77, 92, 95 minutes
