Suppose two analysts--Mr. X and Ms. Y--developed forecasts using different forecasting methods. The table below shows their forecasts as well as the actual demand for Years 1 through 5. Year Actual Demand 1 2 3 4 5 450 480 410 520 560 X's Forecast Y's Forecast 400 500 490 470 460 400 570 580 530 600 (1) Which of the two forecasts is more accurate if the cumulative forecast error (CFE) method is used? (Show your work to receive credit.) (ii) Which of the two forecasts is more accurate if the mean absolute deviation (MAD) method is used? (Show your work to receive credit.)