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The president of Hill Enterprises, Terri Hill, projects the firm's aggregate demand requirements over the next 8 months as follows: Her operations manager is considering a new plan, which begins in January with 200 units of inventory on hand. Stockout cost of lost sales is $125 per unit. Inventory holding cost is $25 per unit per month. Ignore any idle-time costs. The plan is called plan A. Plan A: Vary the workforce level to execute a strategy that produces the quantity demanded in the prior month. The December demand and rate of production are both 1,600 units per month. The cost of hiring additional workers is $50 per unit. The cost of laying off workers is $75 per unit. Evaluate this plan. (Enter all responses as whole numbers.) Note: Both hiring and layoff costs are incurred in the month of the change. For example, going from 1,600 in January to 1,200 in February incurs a cost of layoff for 400 units in February. Consuelo Chua, Inc., is a Columbian disk drive manufacturer in need of an aggregate plan for July through December. The company has gathered the following data. There are 8 hours of production per day. What will each of the two following strategies cost? a) Vary the workforce so that production approximates demand. Chua had eight workers on board in June. (Enter al responses as whole numbers). Fill in the table below. (Enter all responses as whole numbers. In the hire/layoff column, use positive numbers for hires - plus signs omitted; negative numbers for layoffs.) * No costs are incurred for unmet demand. "*When computing "Personnel on Staff," if 0.5 or more of an employee is needed round up and hire one more employee; if less than 0.5 , round down