Question: please have the solutions using excel because rounding is different than calculator solution. A time series with forecast values is presented in the following table.

please have the solutions using excel because rounding is different than calculator solution.

A time series with forecast values is presented in the following table. The actual value of November is announced as 4.2. Calculate the mean absolute deviation (MAD) for the forecast in the period from August to November. (Calculate to three decimal places. X.XXX) Month Actual Forecast 5 11 5 July August September October 13 7.4 6 9.64 November 8.184

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