Problem 13.9 Question Help (Units) 0 100 Month 1 July 2 August 3 September 4 October 5 November 6 December Demand Production Production Inventory 1200 1,200 0 1300 1,200 0 1200 1,200 0 1700 1,200 0 1650 1.200 0 1650 1,200 0 0 500 450 450 The total cost, excluding normal time labor costs, for Plan A = $ 90000. (Enter your response as a whole number.) Plan B: Vary the workforce to produce the prior month's demand. The firm produced 1,300 units in June. The cost of hiring additional workers is $35 per unit produced. The cost of layoffs is $60 per unit cut back. (Enter all responses as whole numbers.) Note: Both hiring and layoff costs are incurred in the month of the change (i.e., going from production of 1,300 in July to 1200 in August requires a layoff (and related costs) of 100 units in August). Layoff (Units) Hire (Units) Ending Inventory Stockouts (Units) Production Demand 1200 1300 Month 1 July 2 August 3 September 4 October 5 November 1200 1700 1650 6 December 1650