The hospital$$s administration is considering the following forecasting methods. Begin error measurement in

year $3$ so all methods are compared for the same years.

a$.$ Exponential smoothing, with a $=0\mathrm{.}6.$ Let the initial

forecast for year $1$ be $45,$ the same as the actual demand.

b$.$ Exponential smoothing, with a $=0\mathrm{.}9.$ Let the initial

forecast for year $1$ be $45,$ the same as the actual demand