2.18. For the following data, calculate the number of workers required for level production and the resulting month-end inventories. Each worker can produce 9 units per day, and the desired ending inventory is 800 units. Why is it not possible to reach the exact ending inventory target?

Month 1

2 3

4 5

6 Total Working Days 20 24 12 22 20 19 Forecast Demand 2800 3000 2700 3300 2900 3200 Planned Production Planned Inventory 1000