Single-server queueing system through automation

Assignment Help Operation Management

Reference no: EM132153195

1. A manager is trying to improve a single-server queueing system through automation. The average service time is 20 minutes per customer, exponentially distributed, and the arrival rate is 16 customers per 8-hour day (Poisson arrivals). The automated system will have a constant service time of 16 minutes. The effect of this change will:

1) decrease utilization.

2) increase waiting time.

3) decrease waiting time.

4) have no effect since the service time is unchanged.

2. The local grocery store consists of two cashiers. The customers arrive at the checkout according to the Poisson distribution and the service times are based on negative exponential distribution. The average customer service time is 4 minutes and the average time between the arrivals of successive customers is 3 minutes. Assume that customers equally divide themselves between the two cashiers.

What is the probability that there are no customers in the grocery store?

1) .667

2) .5

3) .166

4) .333

3. At Joe's Pool Hall they rent tables by the hour and also rent Balabushka pool cues for purists that can't afford their own. The rental process for these cues is exhaustive and takes an hour and a half for each application. There are three leasing agents that conduct these interviews, and on average, it is one hour between customer arrivals.

What is the likelihood there are more than three customers in the system?

1) 24%

2) 76%

3) 12%

4) 88%

Reference no: EM132153195

Questions Cloud

Internet control message protocol : An attack that uses the Internet Control Message Protocol (ICMP) to flood a victim with packets.

Franchisees under franchise agreement : What kind of rights and protections are given to franchisees under a Franchise Agreement?

How often are gpo changes applied : Is using the option to Store passwords using reversible encryption a good security practice? Why or why not? How often are GPO changes applied?

What is wrongful dismissal in employment : What is wrongful dismissal in employment? Give an example. Distinguish between an insurance broker and an insurance agent.

Single-server queueing system through automation : A manager is trying to improve a single-server queueing system through automation. What is the probability that there are no customers in the grocery store?

Develop an aggregate vision of it compliance : Assess all key business processes and IT compliance factors and link to all business processes (financial and non-IT) to develop an aggregate vision.

Conduct characteristics for employees in it organization : Write down a policy listing expected ethical conduct characteristics for your employees in your IT organization.

Develop a sequence of instructions : 300076 Microprocessor Systems Assignment - Develop a sequence of instructions that add AL,BL,CL,DL and AH, and saves the sum in the DH register

Which gpo policy takes precedence in case of policy coflict : Which GPO policy takes precedence in the case of a policy conflict? Why? What is the value of the Group Policy in an enterprise environment?

User Account

All Pages