Your manager is trying to determine what forecasting method to use. Based on the Your manager is trying to determine what forecasting method to use. Based on the

following historical data, calculate the following forecast, and specify what procedure you

would use.

following historical data, calculate the following forecast, and specify what procedure you

would use.Your manager is trying to determine what forecasting method to use. Based on the

following historical data, calculate the following forecast, and specify what procedure you

would use. Calculate the weighted three$-$month moving average for the periods $4-12$ using weights

of $0\mathrm{.}50($for the period t$-1)$; $0\mathrm{.}30($for the period t$-2)$; and $0\mathrm{.}20($for the period t$-3).$ Place

answers in the table. Place answers in the table. $($Round all calculations to $3$ decimal

places$)(7$ pts$)$ Calculate the simple exponential smoothing forecast for periods $2-12$ using an initial

forecast $(F_1)$ of $61$ and an alpha $()$ of $0\mathrm{.}30.$ Place answers in the table. $($Round all

calculations to $3$ decimal places$)(12pts)$ Calculate the overall mean absolute deviation for the forecasts made in questions $1-4.$ Place answers in the table. $($Round your answers to $3$ decimal places$)(8$ pts$)$

$\begin{array}{cc}?& \text{M}\text{e}\text{a}\text{n}\text{A}\text{b}\text{s}\text{o}\text{l}\text{u}\text{t}\text{e}\text{D}\text{e}\text{v}\text{i}\text{a}\text{t}\text{i}\text{o}\text{n}(MAD)\\ \text{T}\text{h}\text{r}\text{e}\text{e}-\text{m}\text{o}\text{n}\text{t}\text{h}\text{m}\text{o}\text{v}\text{i}\text{n}\text{g}\text{a}\text{v}\text{e}\text{r}\text{a}\text{g}\text{e}& ?\\ \text{T}\text{h}\text{r}\text{e}\text{e}-\text{m}\text{o}\text{n}\text{t}\text{h}\text{w}\text{e}\text{i}\text{g}\text{h}\text{t}\text{e}\text{d}\text{m}\text{o}\text{v}\text{i}\text{n}\text{g}\text{a}\text{v}\text{e}\text{r}\text{a}\text{g}\text{e}& ?\\ \text{S}\text{i}\text{m}\text{p}\text{l}\text{e}\text{e}\text{x}\text{p}\text{o}\text{n}\text{e}\text{n}\text{t}\text{i}\text{a}\text{l}\text{s}\text{m}\text{o}\text{o}\text{t}\text{h}\text{i}\text{n}\text{g}\text{f}\text{o}\text{r}\text{e}\text{c}\text{a}\text{s}\text{t}& ?\end{array}$