Monday
April 21, 2014

Homework Help: Operations Management

Posted by Nick on Tuesday, September 13, 2011 at 5:16am.

Fresh Sub hires three workers during the peak hours. When customers arrive, one worker is dedicated to order taking and preparing the bread and the meat; then the customer is passed to the second worker, who asks the customer about the vegetable selection and specializes in assembly; finally the customer is passed to the third worker, who is a cashier. The service time for the first worker (order taker) follows a normal distribution with mean equals to 3 minutes and a standard deviation equals to 1 minutes. The service time for the second worker (assembler) is uniformly distributed between 2.4 minutes to 2.6 minutes. The service time for the third worker (cashier) is exactly 2.4 minutes. Customers arrive following a Poisson process with a rate of 15 customers per hour (i.e., the inter-arrival time is exponential).


a. Does Fresh Sub have enough capacity to serve the customers?

b. What are the utilization rates of the three workers?

c. On average, how many customers will wait for the first worker (order taker)? And how long on average will a customer wait?

d. As the customers finish order taking and bread/meat selection and move onto the second worker (assembler), from the assemblerís view, does the arrival rate still follows a Poisson process?

e. Will customers ever wait for the second worker (assembler)? Will customers ever wait for the third worker (cashier)?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

mis - Choose one of the following basic business processes: inventory management...
mis - Choose one of the following basic business processes: inventory management...
Operations Management - A small grocery store sells fresh produce, which it ...
Operations Management - A small grocery store sells fresh produce, which it ...
operation management - (01) Why study operations management? (02) What is the ...
math! - george entered a function into his calculator andfound the following ...
bus 100 - Operations Management" Please responds to the following: Review the ...
Math/Economics - Suppose that a firm has only one variable input, labor, and ...
Math/Economics - Suppose that a firm has only one variable input, labor, and ...
Operations Management - Hi, can anyone think of a business (service, products), ...

Search
Members