The Fore and Aft Marina is located on the Ohio River near Madison, Indiana. Fore and Aft currently operates a docking facility where only one boat at a time can stop for gas and servicing. The manager of the Fore and Aft Marina wants to investigate the possibility of enlarging the docking facility so that two boats can stop for gas and servicing simultaneously. Assume that the arrival rate is 6 boats per hour and that the service rate for each server is 11 boats per hour. (Round your answers to four decimal places.) (a) What is the probability that the boat dock will be idle? 0.0759 X (b) What is the average number of boats that will be waiting for service? 0.2285 x (c) What is the average time (in hours) a boat will spend waiting for service? h (d) What is the average time (in hours) a boat will spend at the dock? h (e) If customers expect to be able to be in and out of the marina within 10 minutes on average, does this system provide acceptable service? 10 minutes. ---Select---✓, since the average time a boat will spend at the dock is ---Select-- (f) The manager of Fore and Aft Marina is interested in balancing good customer service with the cost of providing this service. To achieve this, the manager would like the customer's average time i the system to be as close to 10 minutes as possible, but not exceeding 10 minutes. Is enlarging the capacity of the dock to handle two boats at a time a good way of achieving this? Both channels will be empty approximately ---Select--- % of the time, and when customers do show up, they ---Select--- likely to have to wait for 10 minutes. On the whole, the expansion ---Select---be best way of achieving their goal.
The Fore and Aft Marina is located on the Ohio River near Madison, Indiana. Fore and Aft currently operates a docking facility where only one boat at a time can stop for gas and servicing. The manager of the Fore and Aft Marina wants to investigate the possibility of enlarging the docking facility so that two boats can stop for gas and servicing simultaneously. Assume that the arrival rate is 6 boats per hour and that the service rate for each server is 11 boats per hour. (Round your answers to four decimal places.) (a) What is the probability that the boat dock will be idle? 0.0759 X (b) What is the average number of boats that will be waiting for service? 0.2285 x (c) What is the average time (in hours) a boat will spend waiting for service? h (d) What is the average time (in hours) a boat will spend at the dock? h (e) If customers expect to be able to be in and out of the marina within 10 minutes on average, does this system provide acceptable service? 10 minutes. ---Select---✓, since the average time a boat will spend at the dock is ---Select-- (f) The manager of Fore and Aft Marina is interested in balancing good customer service with the cost of providing this service. To achieve this, the manager would like the customer's average time i the system to be as close to 10 minutes as possible, but not exceeding 10 minutes. Is enlarging the capacity of the dock to handle two boats at a time a good way of achieving this? Both channels will be empty approximately ---Select--- % of the time, and when customers do show up, they ---Select--- likely to have to wait for 10 minutes. On the whole, the expansion ---Select---be best way of achieving their goal.
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 9P
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Transcribed Image Text:The Fore and Aft Marina is located on the Ohio River near Madison, Indiana. Fore and Aft currently operates a docking facility where only one boat at a time can stop for gas and servicing.
The manager of the Fore and Aft Marina wants to investigate the possibility of enlarging the docking facility so that two boats can stop for gas and servicing simultaneously. Assume that the arrival rate is 6 boats per hour and that the
service rate for each server is 11 boats per hour. (Round your answers to four decimal places.)
(a) What is the probability that the boat dock will be idle?
0.0759 X
(b) What is the average number of boats that will be waiting for service?
0.2285
(c) What is the average time (in hours) a boat will spend waiting for service?
h
(d) What is the average time (in hours) a boat will spend at the dock?
h
(e) If customers expect to be able to be in and out of the marina within 10 minutes on average, does this system provide acceptable service?
---Select--- since the average time a boat will spend at the dock is ---Select--- 10 minutes.
(f) The manager of Fore and Aft Marina is interested in balancing good customer service with the cost of providing this service. To achieve this, the manager would like the customer's average time in the system to be as close to
10 minutes as possible, but not exceeding 10 minutes. Is enlarging the capacity of the dock to handle two boats at a time a good way of achieving this?
Both channels will be empty approximately ---Select--- % of the time, and when customers do show up, they ---Select--- likely to have to wait for 10 minutes. On the whole, the expansion ---Select--- be best way of achieving
their goal.
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