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As shown in the following table, demand for robotic-assisted surgeries at TechCare Hospital has increased at an irregular rate over the past few years:

As shown in the following table, demand for robotic-assisted surgeries at TechCare Hospital has increased at an irregular rate over the past few years: Year Surgeries 1 25 2 30 3 33 4 41 5 38 6 49 The director of medical services predicted 6 years ago that demand in year 1 would be 24 surgeries. a) Use exponential smoothing with a smoothing constant of a to Odevelop forecasts for years 2 through 6. Calculate the Mean Absolute Percentage Error (MAPE) for this case. b) Use trend-adjusted exponential smoothing to forecast demand for years 2 through 6 with smoothing constants of cand034 soume that the initial trend adjustment is -3. Calculate the MAPE for this case. c) With MAPE as the criterion, which of the two forecasting methods is best?

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