solution

Consuelo? Chua, Inc., is a 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.

Costs		Other Data
Holding Costs	$8/disk drive/Month	Current Workforce(June)	8 people
Subcontracting	$80/disk drive	Labor-hours/disk drive	4 hours
Regular-time labor	$12/hour	Workdays/month	20 days
Overtime labor	$18/hour (above 8 hrs)	Beginning Inventory	150 disk drives*
Hiring cost	$40/worker	Ending Inventory	0 disk drives
Layoff cost	$80/worker

*Note that there is no holding cost for June.

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.

?(Enterall responses as wholenumbers?).

Fill in the table below. ?(Enter all responses as whole numbers. In the? hire/layoff column, use positive numbers forhires—plussigns? omitted; negative numbers for? layoffs.)

				Plan A
Month	Demand	Beginning Inventory	Personnel on Staff**	Units Produced	Hire/Layoff
June		150	8			0
July	400					1
August	500					2
September	550					3
October	700					4
November	800					5
December	700					6

?* 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.