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The Excel file Closing Stock Prices provides data for four stocks and the Dow Jones Industrial Average over a one$-$month period.

$1.$ Develop a spreadsheet for forecasting each of the stock prices and the DJIA using a simple two$-$period and three$-$period moving average.

$2.$ Compute MAD, MSE, and MAPE and determine whether two or three moving average periods is better.$\backslash$table$[[,$A$,$B$,$C$,$D$,$E$,$F$,G$