Estimate demand for the next two weeks using simple exponential smoothing with a $=0\mathrm{.}3$ and Holt$$s model with a $=0\mathrm{.}05$ and b $=0\mathrm{.}1.$ For the simple exponential smoothing model, use the level at Period $0$ to be L$0=1,659($the

average demand over the $12$ months$).$ For Holt$$s model, use

level at Period $0$ to be L$0=948$ and the trend in Period $0$ to be

T$0=109($both are obtained through regression$).$ Evaluate the

MAD, MAPE, MSE, bias, and TS in each case. Which of the

two methods do you prefer? Why?