View the step-by-step solution to:

# Write a program that simulates a checkout line at a supermarket. The line is a queue object. Customers( i.e customer objects) arrive in random...

Write a program that simulates a checkout line at a supermarket. The line is a queue object. Customers( i.e customer objects) arrive in random integer intervals of 1-4 minutes. Also each customer is served in random integer intervals of 1-4 minutes. Obviously, the rates need to be balanced. If the average arrival rate is larger than the average service rate, the queue will grow infinitely. Even with “ Balanced” rates, randomness can still cause long lines. Run the supermarket simulation for a 12 hour day(720 minutes) using the following algorithm:
1) choose a random integer between 1 and 4 to determine the minute at which the first customer arrives.
2) At the first customer’s arrival time:
Determine customer’s service time (random integer from 1 to 4);
Begin servicing the customer;
Schedule arrival time of next customer (random integer 1 to 4 added to the current time).
3) For each minute of the day;
If the next customer arrives,
Say so,
Enqueue the customer;
Schedule the arrival time of the next customer;
If service was completed for the last customer;
Say so
Dequeue next customer to be serviced
Determine customer’s service completion time( random integer from 1 to 4 added to the current time).
Now run your simulation for 720 minutes and answer each of the following:
a) What’s the maximum number of customers in the queue at any time?
b) What’s the longest wait any one customer experiences?
c) What happens if the arrival interval is changed from 1-4 minutes to 1-3 minutes?

## This question was asked on Nov 28, 2010.

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors and customizable flashcards—available anywhere, anytime.

### -

Educational Resources
• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access or to earn money with our Marketplace.

Browse Documents