HW8_2016.docx

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Name: _____SiyuanFei ________________ Homework #8 (20 points) Section Time: __7:30 ___ Seat:___12______ 1. The hospital has to allocate a certain amount of operating room (OR) time to specific cardiac procedures. Since the actual procedure time in the OR is random and will - in the best of all cases - vary around the expected procedure time, some procedures will exceed the forecasted durations while others will be completed ahead of schedule. If the hospital reserves too much time to a case, the OR is likely to incur excessive idle time. If, however, the hospital reserves too little time to a case, the hospital is likely to face schedule over-runs and decreased service quality. Case Reserved time (min) Actual time (min) A/F ratio A 90 122 1.35 B 100 83 0.83 C 120 121 1.01 D 150 145 0.97 E 180 209 1.16 There is a new case, say, F. The reservation system predicts the operating time to be 110 minutes. From past experience, the doctors think that the reservation system has a certain percentage of predicting error (see the table).
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