Operations management 12th stevenson chapter 11 solutions

1 From example Period Forecast Output Regular Overtime Subcontract OutputForecast Inventory Beginning 200 200 300 400 500 200 Total 1,800 300 300 300 450 450 1,800 100 100 (400) (50) 250 100 200 200 0 Ending 100 200 200 0 Average Backlog 50 150 200 100 200 250 0 500 450 $600 600 600 900 900 3,600 50 150 200 100 1,000 1,250 0 500 2,250 $650 750 800 1,100 2,150 900 6,350 200 300 400 500 200 Total 1,800 290 290 20 290 20 290 20 290 1,740 60 90 10 (90) (190) 90 90 180 135 180 190 185 190 100 145 100 50 90 0 0 Costs: Output Regular Overtime Subcontract Inventory Backorder @ Total a (Other plans are possible) Period Forecast 200 Output Regular 290 Overtime OutputForecast 90 Inventory Beginning Ending 90 Average 45 Backlog Costs: Regular @ Overtime @ Inventory @ Backorder @ $580 45 580 135 580 60 185 580 60 145 580 60 50 450 Total $625 715 825 785 1,140 560 90 580 $3,480 180 560 450 580 4,670 Solutions (continued) b (Other plans are possible) Period Forecast 200 Output Regular 290 Subcontract OutputForecast 90 Inventory Beginning Ending 90 Average 45 Backlog Costs: Regular @ Subcontract @ Inventory @ Backorder @ Total 200 300 400 500 200 Total 1,800 290 290 290 10 290 50 290 1,740 60 90 (10) (100) (160) 90 90 180 180 170 135 175 0 170 70 120 70 35 90 0 0 $580 580 580 580 580 45 0 135 175 0 60 120 300 35 450 $625 715 755 760 1,365 580 $4,800 510 90 580 $3,480 0 360 510 450 .. .Solutions (continued) b (Other plans are possible) Period Forecast 200 Output Regular 290 Subcontract