Suppose you $($or your group$)$ are the manager of a company trying to determine what forecasting method to use. Based upon the following historical data, calculate the following forecasts for each given forecasting method and then choose the best one to do the forecasts for the future.

$\backslash$table$[[$Month$,\backslash$table$[[$Actual$],[$Demand$]]],[1,61],[2,65],[3,67],[4,70],[5,72],[6,73]]$

e$.$ Calculate the Mean Absolute Deviation $($MAD$)$ for the forecasts made by each technique in periods $4-6.$ Which forecasting method do you prefer? Using your preferred technique forecast the demands for the following $2$ months $($months $7-8).(15$ points$)$

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