3.(20%)Leather-All produces a line of handmade leather products.At the present time,the company is producing only belts,handbags,and attache cases.The predicted demand for these three types of items over a six-month planning horizon is as follows: Number of Month Belts Handbags Attache Cases Working Days 1 22 2,500 1,250 240 2 20 2,800 680 380 3 19 2,000 1,625 110 4 24 3,400 745 75 J 21 3,000 835 126 6 17 1,600 375 45 The belts require an average of two hours to produce,the handbags three hours,and the attache case six hours.All the works have the skill to work on any item.Leather-All has 46 employees who each has a share in the firm and cannot be fired.There are an additional 30 locals that are available and can be hired for short periods at higher cost.Regular employees earn $8.50 per hour on regular time and $14.00 per hour on overtime.Regular time comprises a seven-hour workday,and the regular employee will work as much overtime as is available.Costs of hiring and firing are negligible. Because of the competitive nature of the industry,Leather-All does not want to incur any demand back orders. a.Using worker hours as an aggregate measure of production,convert the forecasted demands to demands in terms of aggregate units. b.Determine a production plan that meets the demand using only regular-time employees and the total cost of that plan. C卷总6页第3页C 卷 总 6 页 第 3 页 3. (20%) Leather-All produces a line of handmade leather products. At the present time, the company is producing only belts, handbags, and attaché cases. The predicted demand for these three types of items over a six-month planning horizon is as follows: Month Number of Working Days Belts Handbags Attaché Cases 1 22 2,500 1,250 240 2 20 2,800 680 380 3 19 2,000 1,625 110 4 24 3,400 745 75 5 21 3,000 835 126 6 17 1,600 375 45 The belts require an average of two hours to produce, the handbags three hours, and the attaché case six hours. All the works have the skill to work on any item. Leather-All has 46 employees who each has a share in the firm and cannot be fired. There are an additional 30 locals that are available and can be hired for short periods at higher cost. Regular employees earn $8.50 per hour on regular time and $14.00 per hour on overtime. Regular time comprises a seven-hour workday, and the regular employee will work as much overtime as is available. Costs of hiring and firing are negligible. Because of the competitive nature of the industry, Leather-All does not want to incur any demand back orders. a. Using worker hours as an aggregate measure of production, convert the forecasted demands to demands in terms of aggregate units. b. Determine a production plan that meets the demand using only regular-time employees and the total cost of that plan