Multi-Part Problem: Resource Planning-AggPlan Given next 6 months aggregated demand forecast and other related information in the following tables.

Month	Project Demand (unit)			Regular	Overtime	Subcontract
Jan	200		Operation Cost (unit)	$100	$130	$150
Feb	200		Capcity/month (unit)	200	60	120
Mar	300		Capcity/6 month (unit)	1200	360	720
Apr	400					2280
May	500
Jun	200		Other costs (unit)
Total	1800		Inventory/month	$10
			Backorder/month	$30
Inventory (unit)
Given Beginning	50
End of Month 6 (Required)	100

1. Assume that you are required to use all the Regular Production Capacity, develop a Feasible Aggregate Plan, that is, an aggregate plan that meets the inventory requirements.
2. Given the aggregate plan you developed in part a), Can you conclude whether or not this plan is optimal? If it is not, revise your plan to improve it. Explain why do you think the revised is better than your original one.