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The Kebab House is a major producer of Kebabs. The following are the estimates of demand, cost, and production data for the next six months NA N/A S15 Cost Data Hiring cost/worker Layoff cost/worker Straight time cost hour Holding cost/unit/month Backorder cost'unit/month Subcontracting cost/unit Overtime cost hour S6 S12 $24 $17 8 Production Data Working hours/day Labour requirement (hours/unit) Safety stock Beginning inventory (units) Planning horizon (months) 4 400 6 Month Demand Forecast Working Days March 600 20 April 1100 20 May 400 20 June 900 19 July 800 20 August 1000 21 Develop two aggregate production schedules. a Constant Workforce Plan: Varying Inventory and Stockouts. Use a constant workforce large enough to produce enough units over the six months to meet total forecast demand. All workers must be full-time workers. Assume stockouts result in backorders which must be satisfied from production in following periods. b. Constant Workforce Plan: Overtime. Use a constant workforce of 20 workers and use overtime to meet any additional output requirements