Concept explainers
a)
To determine: The number of jobs present in the shop.
Introduction: In order to predict the waiting time and length of the queue, queueing model will be framed. Queueing theory is the mathematical model that can be used for the decision-making process regarding the resources required to provide a service.
b)
To determine: The time taken to finish the order.
Introduction: In order to predict the waiting time and length of the queue, queueing model will be framed. Queueing theory is the mathematical model that can be used for the decision-making process regarding the resources required to provide a service.
c)
To determine: The probability of starting the work within two days after the arrival.
Introduction: In order to predict the waiting time and length of the queue, queueing model will be framed. Queueing theory is the mathematical model that can be used for the decision-making process regarding the resources required to provide a service.
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Chapter 12 Solutions
Practical Management Science
- Find a Doctor is a small startup that helps people find a physician who best meets their needs (location, insurance accepted, etc.). During a “slow” time for it, it has 8 staff members taking calls from customers. On average, one call arrives every 5 minutes (with a standard deviation of 5 minutes). Each staff member spends on average 18 minutes with each customer (with a standard deviation of 27.00 minutes). How long does one of their customers spend, on average, waiting on hold before he or she can start speaking to a representative?arrow_forwardA computer system queues up batch jobs and processes them on an FCFS basis.Between 2 and 5 P.M., jobs arrive at an average rate of 30 per hour and require anaverage of 1.2 minutes of computer time. Assume the arrival process is Poissonand the processing times are exponentially distributed.a. What is the expected number of jobs in the system and in the queue in thesteady state?arrow_forwardA summer camp that offers one-week programs faces the challenges of long queues asparents try to check in their children each Saturday morning. If they were to add morestaff to assist with the check-in process, then which of the following will occur?i. The average time parents wait decreases.ii. The maximum time the parents wait decreases.iii. The average number of parents waiting to check in their child decreases. a. Just Ib. Just IIc. Just IIId. I and IIe. I and IIIf. II and IIIg. I, II, and IIIarrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,