Problem #2 Aggregate and Disaggregate Planning Using aggregate planning strategies, calculate the cost of 8 months in production using the data given below T 1 2 3 4 5 6 7 8 Demand 2500 2000 2300 2800 2600 3200 3600 3300 Initial inventory = 300 Total resource = 25 Production rate = 100 units/person Inventory cost = $100/unit/period Stock out cost = $200/unit/period Production cost: Regular time = $ 600/unit Over time =$ 900/unit Sub-Contract=S 800/unit Hiring cost = $ 500/person Lay-off cost = $ 300/person