Develop a production plan and calculate the annual cost for a firm whose demand forecast is fall, 10,200; winter, 7,800; spring, 5,300; summer,...

Develop a production plan and calculate the annual cost for a firm whose demand forecast is fall, 10,200; winter, 7,800; spring, 5,300; summer, 11,500. Inventory at the beginning of fall is 560 units. At the beginning of fall you currently have 27 workers, but you plan to hire temporary workers at the beginning of summer and lay them off at the end of the summer.