A service firm uses a level utilization production-planning horizon of six months. They have developed a forecast for the coming six months that appears in the table. They can add no more than 33% of their production capacity as overtime. What is the minimum cost sales and operations plan? Work Force Utilized Overtime Month Beginning Requirement Level Time Undertime Capacity Overtime Hires Layoffs 10 1 6 2 12 3 18 4 15 5 13 6 14 Total 78 Costs and Capacities Regular $/pd per worker $3,000 Overtime $4,500 Undertime not paid Hiring $1,500 Hiring Cap 4 Firing $600 OT Cap 0.33