A department works one 8-hour shift, 250 days a year, and has these figures for usage of amachine that is currently being considered:ProductAnnualDemandStandard ProcessingTime per Unit (hr)Processing TimeNeeded (hr)1 400 5.0 2,0002 300 8.0 2,4003 700 2.0 1,4005,800Units of capacity needed = Processing time needed ___________________________ Processing time capacity per unit (5–3)Working one 8-hour shift 250 days a year provides an annual capacity of 8 × 250 =2,000 hours per year. Consequently, three of these machines would be needed to handle therequired volume:5,800 hours __________________ 2,000

A department works one 8-hour shift, 250 days a year, and has these figures for usage of amachine that is currently being considered:ProductAnnualDemandStandard ProcessingTime per Unit (hr)Processing TimeNeeded (hr)1 400 5.0 2,0002 300 8.0 2,4003 700 2.0 1,4005,800Units of capacity needed = Processing time needed _________ Processing time capacity per unit (5–3)Working one 8-hour shift 250 days a year provides an annual capacity of 8 × 250 =2,000 hours per year. Consequently, three of these machines would be needed to handle therequired volume:5,800 hours 2,000

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section: Chapter Questions

Problem 59P

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A company that makes shopping carts for supermarkets and other stores recently purchased somenew equipment that reduces the labor content of the jobs needed to produce the shopping carts.Prior to buying the new equipment, the company used five workers, who produced an average of80 carts per hour. Workers receive $10 per hour, and machine cost was $40 per hour. With the newequipment, it was possible to transfer one of the workers to another department, and equipment costincreased by $10 per hour while output increased by four carts per hour.a. Compute labor productivity under each system. Use carts per worker per hour as the measure oflabor productivity.b. Compute the multifactor productivity under each system. Use carts per dollar cost (labor plusequipment) as the measure.c. Comment on the changes in productivity according to the two measures, and on which one youbelieve is the more pertinent for this situation.
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