ch05 - File ch5 Chapter 5 Service Design True/False 1 The...

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Unformatted text preview: File: ch5, Chapter 5: Service Design True/False 1. The tradeoff between the cost of improved service and the cost of making customers wait provides the basis of waiting line analysis. Ans: True Difficulty: Easy Feedback: Waiting Line Analysis for Service Improvement 2. A single waiting line model can be applied to every type of waiting line system. Ans: False Difficulty: Easy Feedback: Waiting Line Analysis for Service Improvement 3. Waiting lines form only when service operations are understaffed. Ans: False Difficulty: Easy Feedback: Waiting Line Analysis for Service Improvement 4. Waiting lines form because customers arrival times and service times are not always equal. Ans: True Difficulty: Easy Feedback: Waiting Line Analysis for Service Improvement 5. The calling [population is the source of customers used in waiting line analysis. Ans: True Difficulty: Easy Feedback: Waiting Line Analysis for Service Improvement 6. The number of arrivals per unit time to a service facility is often described by a Poisson distribution. Ans: True Difficulty: Moderate Feedback: Waiting Line Analysis for Service Improvement 7. Balking occurs when a customer waiting in a line moves from one line to another because he believes it is moving faster. Ans: False Difficulty: Moderate Feedback: Waiting Line Analysis for Service Improvement 8. The negative exponential distribution is the probability distribution s most commonly used to describe service times. Ans: True Difficulty: Moderate Feedback: Tools for service design 9. If service times are exponentially distributed then service rates are normally distributed. Ans: False Difficulty: Moderate Feedback: Waiting Line Analysis for Service Improvement 10. If the average service rate is smaller than the average aeeival rate an infinitely large waiting line (queue) will form. Ans: True Difficulty: Easy Feedback: Waiting Line Analysis for Service Improvement 11. Queue discipline specifies the order in which waiting customers are served. Ans: True Difficulty: Moderate Feedback: Waiting Line Analysis for Service Improvement 12. The number of parallel servers in waiting line analysis is referred to as the number of phases. Ans: False Difficulty: Moderate Feedback: Waiting Line Analysis for Service Improvement Mathematical formulas used in waiting line analysis provide only optimal solutions. Ans: False Difficulty: Moderate Feedback: Waiting Line Analysis for Service Improvement 13. The constant average values of operating characteristics that a system attains after a long time is referred to as a steady state. Ans: True Difficulty: Moderate Feedback: Waiting Line Analysis for Service Improvement 14. Aas the level of service improves in a waiting line system the cost of service usually increases....
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This note was uploaded on 01/22/2012 for the course COMM 225 taught by Professor Shafaat during the Spring '11 term at Concordia Canada.

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ch05 - File ch5 Chapter 5 Service Design True/False 1 The...

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