TABLE 1. Historical Sales of Widgets During the last 12 months Month/Sales 1-1650 2-1580 3-1610 4-1600 5-1650 6-1530 7-1660 8-1480 9-1600 10-1620 11-1550 12-1600 Assignment: For the widget sales data given above, your boss wants you to compare the following models using the Mean Absolute Deviation (MAD) measure of error: […]