Operations and Supply Chain Management, 9th Edition WileyPLUS Registration Card + Loose-leaf Print Companion
Operations and Supply Chain Management, 9th Edition WileyPLUS Registration Card + Loose-leaf Print Companion
9th Edition
ISBN: 9781119371618
Author: Roberta S. Russell
Publisher: Wiley (WileyPLUS Products)
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Chapter 5, Problem 18P
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To explain: A shoe store is going to open a store in a new mall. Customer arrival rate is 9 per hour, and salespeople can serve on average 6 customers per hour. How many salespeople should the shoe company hire given that company policy states a customer must not wait for more than 30% of the time.

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Plesase use Single Server Model and Multiple Server Model  to solve this question. Drivers working for a large transportation company must get their vehicles checked from the company’s workshop after every 3,000 km. For this service, the average vehicle arrival rate at the workshop is 3.5 vehicles per hour (Poisson distributed). Currently there is only one mechanic serving a vehicle in 15 minutes on average and being paid $30 per hour. For every hour a vehicle is not working, the company loses $35. The company has an option to hire more mechanics. What is the most cost-efficient workshop staffing for this service? (Please also give the details for L and M.)

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Operations and Supply Chain Management, 9th Edition WileyPLUS Registration Card + Loose-leaf Print Companion

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