NOTE: Show and use excel formulas for each and all calculations and round to two decimals

Q 2	For each of the forecasts and demand below, calculate the Mean Absolute Deviation,
	Mean Squared Error and Mean Absolute Percent Error.
	Use the ABS formula for Absolute Value. (3 marks)
week	Demand	Forecast	Error (e)	Abs e	e^2	Abs e/A*100%
1	85	77
2	76	82
3	81	56
4	68	72
5	75	80
6	83	75
			MAD =
			MSE =
			MAPE =