1. The head of surgery department at a university medical center was concerned that surgical residents in training applied unnecessary blood transfusions at a different rate than the more experienced...

Extracted text: 1. The head of surgery department at a university medical center was concerned that surgical residents in training applied unnecessary blood transfusions at a different rate than the more experienced attending physicians. Physicians Attending Resident Total Occasionally 3 Rarely 31 Frequent Never Total 2 13 49 15 28 31 23 54 5 71 17 18 120 Are attending physicians and residents in training distributed equally among the various unnecessary blood transfusion categories? Use 0.05 level of significance.