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​As you can see in the following table, demand for heart transplant surgery at Washington General Hospital has increased steadily in the past few years

As you can see in the following table, demand for heart transplant surgery at Washington General Hospital has increased steadily in the past few years: 

Year12345
Heart Transplants48.052.053.057.057.0

The director of medical services predicted 6 years ago that demand in year 1 would be 44.0 surgeries.

a) Using exponential smoothing with a of 0.60 and the given forecast for year 1, the forecasts for years 2 through 6 are (round your responses to one decimal place): 

Year123456
Forecast44.046.449.851.754.956.2

For the forecast made using exponential smoothing with a = 0.60 and the given forecast for year 1, MAD = 4.1 surgeries (round your response to one decimal place). 

Using exponential smoothing with a of 0.90 and the given forecast for year 1, the forecasts for years 2 through 6 are (round your responses to one decimal place): 

Year123456
Forecast44.047.651.652.956.657.0

For the forecast made using exponential smoothing with a = 0.90 and the given forecast for year 1, MAD = 2.9 surgeries (round your response to one decimal place). 


b) Forecasts for years 4 through 6 using a 3-year moving average are (round your responses to one decimal place): 

Year456
Forecast51.054.055.7

For forecasts made using a 3-year moving average, MAD = 4.5 surgeries (round your response to one decimal place).

c) Forecasts for years 1 through 6 using the trend-projection method are (round your responses to one decimal place): 

Year123456
Forecast






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