Kenny's Unique Trapping is comparing the accuracy of two methods that she has used to forecast monthly sales of her popular hair weaves. Forecast of monthly sales from January through May for methods 'A' and 'B' are shown below against the actual sales. (12point). METHOD A METHOD B Month Sales forecast Forecast Jan 40 42 44 Feb 28 29 31 Mar 41 38 39 42 Apr 41 38 40 May 39 41 Based on the table you constructed above, calculate the Mean Absolute Deviation (MAD) for A & B (10points).