Upon checking hospital records, a hospital administrator
Chapter 10, Problem 10.7.4(choose chapter or problem)
Upon checking hospital records, a hospital administrator notices that over a certain period of time, 443 out of 564 surgical operations performed in the morning turned out to be a total success, whereas only 388 out of 545 surgical operations performed in the afternoon turned out to be a total success. Does this substantiate the hypothesis that surgeons are less effective in the afternoon because they are more tired? How strong is the evidence that this data set provides to support this hypothesis? What other information would you like to know before making a judgment?
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