12. The number of heart surgeries performed at Heartville General Hospital has increased steadily over the past several years. The hospital's administration is seeking the west method to forecast the demand ro. such surger- ies in yea. (. 'he data for the past _ years are shown. Y ear Demand 4 3 52 The hospital's administrati n. considering the follow ing forecasting methods. De, in e ror measurement in year ) so all methods are compared for the same years. a. Exponential smoothing, * ith - 0.6. Let the initial forecast for year 1 be 4., the same as the actual demand. b. Exponential smoothing with a = 0.9. Let the initial to.ecast for yea: 1 be 45 the same as the actual demand c. Trend projection with regression. d Two year moving average. e Two-year weighted moving average Jsing weights 0.6 and 6.4. with more recent data given more weight. f It MAAD is the performance criterion chosen by the administration, which forecasting method should it choose? g. If MLE is the performance criterion chosen by the admin istration, which forecasting method should it choose