OPERATION MANAGEMENT
2nd Edition
ISBN: 9781260242423
Author: CACHON
Publisher: MCG
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Chapter 2, Problem 8CQ
Summary Introduction
To determine: The a (n) for the given information.
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Please do not give solution in image formate thanku.
λ= 4 customers per hour; μ = 5 customers per hour; M= 1
An average of 20 customers arrive at a service center each hour. There are two servers on duty, and each can process 12 customers per hour.
a) What is the system utilization?
b) What is the average waiting time for customers who actually have to
wait?
c) What is the average time customers wait in line for service?
A restaurant mobile app shows the average wait times at each dining establishment that registers for its service, thereby letting would-be diners know when to leave the house, join the waitlist, or make a reservation for next week. This service takes which approach to managing capacity?
a. Advertising and promotion
b. Adding peripheral goods and/or services
c. Providing customers with information
d. Varying the price of goods or services
Pls solve this question correctly in 10 min i will give u thumsup
1. Which of the following statements are true about for the M/D/3 queuing system?
Arrival rate is Poison distributed.
I- Service time is Exponentially distributed.
Ill- Inter-arrival is Exponentially distributed.
1v- There are 3 servers,
2. 5.
What is the optimal solution for max Z=×+2y, st., x+ y less than or equal tpo 40, 2x + 4y less thsn or equal to 60, x, y greater than or equal to 0?
A)
Unique optimal solution, Z° = 30
B)
Alternate optimal solutions, z = 30
C)
Unique optimal solution, Z*= 40
D)
infeasible solution
Chapter 2 Solutions
OPERATION MANAGEMENT
Ch. 2 - From the perspective of process analysis, which of...Ch. 2 - Prob. 2CQCh. 2 - Prob. 3CQCh. 2 - It is election day and 1800 voters vote in their...Ch. 2 - Prob. 5CQCh. 2 - Prob. 6CQCh. 2 - Prob. 7CQCh. 2 - Prob. 8CQCh. 2 - Prob. 9CQCh. 2 - Prob. 10CQ
Ch. 2 - Prob. 11CQCh. 2 - Prob. 1PACh. 2 - For the purpose of process analysis, which of the...Ch. 2 - Prob. 3PACh. 2 - Prob. 4PACh. 2 - Prob. 5PACh. 2 - Prob. 6PACh. 2 - TABLE 2.5 Time Stamps of 10 Customers Who Visited...Ch. 2 - Prob. 8PACh. 2 - Prob. 9PACh. 2 - Prob. 10PACh. 2 - Prob. 11PACh. 2 - Prob. 12PACh. 2 - Prob. 13PACh. 2 - Patients take a drug for severe acne for 6 months...Ch. 2 - Prob. 15PACh. 2 - A large-scale bakery is laying out a new...Ch. 2 - LaVilla is a village in the Italian Alps. Given...Ch. 2 - Prob. 18PACh. 2 - Prob. 19PACh. 2 - Prob. 20PACh. 2 - Prob. 21PA
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- Single server system has customer arrival rate of 60 customers per minute and a service rate of 75 customers per minute. Customer arrival pattern is finite and they won't leave till they are served. The Arrival and Service patterns, both are exponential distribution. Based on the above information calculate a. Server utilization% b. Average numbers of customers in line C. Average time per customer in Line d. Average numbers of customers in system e. Average time per customer in Systemarrow_forwardSaved Help Save & Exit Su In an M/MA queueing system, the arrival rate is 3 customers per hour and the service rate is 5 customers per hour. a. What is the utilization? (Round your answer to 3 decimal places.) Utilization b. What is the expected number of customers in the system (L)? (Round your answer to 3 decimal places.) Expected number of customers c. What is the expected waiting time in the system (W? (Express the waiting time in hours, round your answer to 3 decimal places.) Expected waiting time d. What is the expected number of customers in the queue(Lq)? (Round your answer to 3 decimal places.) Mc Graw Hill Prev 1 of 5 Next >arrow_forwardc) i. If an M/M/1 queue has utilization of 90%, what do you think will be the average queue length and the average response time? If the arrival rate is 100 jobs per secondii. If an M/D/1 queue has utilization of 80% do you expect its mean queue length and response time to be less, same, or greater than that of an M/M/1? Explain your answer.arrow_forward
- Please do not give solution in image format thanku A takeaway café has an average rate of customer arrival of 6 per hour. The café uses two service counters and both counters take 6 minutes to serve each customer. Assuming Poisson arrivals and exponential service, what is the average number of customers waiting in a queue? a. 1.000 b. 0.059 c. 0.600 d. 0.333 e. None of the other answers is correct Feedbackarrow_forward4) Repair calls are handled by one repairman at a photocopy shop. Repair time, including travel time, is exponentially distributed, with a mean of two hours per call. Requests for copier repairs come in at a mean rate of three per eight- hour day (assume Poisson). Determine:1. The average number of customers awaiting repairs.2. System utilization.3. The amount of time during an eight-hour day that the repairman is not out on a call. 4. The probability of two or more customers in the system.arrow_forwardAt the Children’s Hospital in Seattle, there are, on average, 60 births per week. Mother and child stay, on average, two days before they leave the hospital. At the Swedish Hospital (also in Seattle), the average number of births per week is 210. Mothers and children stay in the hospital for two days, on average.a. How many new mothers, on average, are staying at the Children’s Hospital?b. How many new mothers, on average, are staying at the Swedish Hospital?c. The directors of the two hospitals are negotiating to unify the maternity wards of the two hospitals. They believe this will help reduce the number of new mothers staying in the unified ward. Are they correct? How many new mothers will stay, on average, in the unified ward? You may assume that the average number of births and the length of stay of the new mothers will not change.arrow_forward
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