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Calculate how many minutes a patient waits on average. (Round your answer to 2 decimal places, the tolerance is +/-0.5.) What percent of the time is the nurse idle? %, (Round your answer to integer, the tolerance is +/-1.)

Calculate how many minutes a patient waits on average. (Round your answer to 2 decimal places, the tolerance is +/-0.5.) What percent of the time is the nurse idle? %, (Round your answer to integer, the tolerance is +/-1.)

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter12: Queueing Models
Section12.5: Analytic Steady-state Queueing Models
Problem 18P
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Annie Campbell is a nurse on the evening shift from 10:00 P.M. to 6:00 A.M. at Community Hospital. She is responsible for 15 patients in her area. She averages two calls from each of her patients every evening (Poisson distributed), and she must spend an average of 10 minutes (negative exponential distribution) with each patient who calls. Nurse Campbell has indicated to her shift supervisor that although she has not kept records she believes her patients must wait about 10 minutes on average for her to respond and she has requested that her supervisor assign a second nurse to her area. The supervisor believes 10 minutes is too long to wait, but she does not want her nurses to be idle more than 40% of the time. (a) Calculate how many minutes a patient waits on average. . (Round your answer to 2 decimal places, the tolerance is +/-0.5.) What percent of the time is the nurse idle? %, (Round your answer to integer, the tolerance is +/- 1.)
Transcribed Image Text:Annie Campbell is a nurse on the evening shift from 10:00 P.M. to 6:00 A.M. at Community Hospital. She is responsible for 15 patients in her area. She averages two calls from each of her patients every evening (Poisson distributed), and she must spend an average of 10 minutes (negative exponential distribution) with each patient who calls. Nurse Campbell has indicated to her shift supervisor that although she has not kept records she believes her patients must wait about 10 minutes on average for her to respond and she has requested that her supervisor assign a second nurse to her area. The supervisor believes 10 minutes is too long to wait, but she does not want her nurses to be idle more than 40% of the time. (a) Calculate how many minutes a patient waits on average. . (Round your answer to 2 decimal places, the tolerance is +/-0.5.) What percent of the time is the nurse idle? %, (Round your answer to integer, the tolerance is +/- 1.)
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