1. Explain the relationship between the aggregate or production plan, the master production schedule (MPS), and the material requirements planning (MRP).
2. Describe the two general forecasting approaches and list and explain examples of each.
3. The last 4 months of sales were 8, 10, 15, and 9 units. The last four forecasts were 5, 6, 11, and 10 units. The mean absolute deviation (MAD) is