a) Develop another plan for the Mexican roofing manufacturer. For this plan, plan 5, the firm wants to maintain a constant workforce of eight using overtime to meet remaining demand. Is this plan preferable? b) The same roofing manufacturer has yet a sixth plan. A constant workforce of seven is selected, with the remainder of demand filled by subcontracting. c) Is this better than plans 15?

Production Days 22 18 Month January February March April May June July August September October November December SSSSSSSS 22 21 22 21 Demand Forecast 1000 1100 1200 1300 1350 1350 1300 1200 1100 1100 1050 900 21 22 21 20 Production Days 22 18 Month January February March April May June July August September October November December SSSSSSSS 22 21 22 21 Demand Forecast 1000 1100 1200 1300 1350 1350 1300 1200 1100 1100 1050 900 21 22 21 20