Question

A fast-food franchise is considering operating a drive-up window food-service operation. Assume that customer arrivals follow a Poisson probability distribution, with an arrival rate of 25 cars per hour, and that service times follow an exponential probability distribution. Arriving customers place orders at an intercom station at the back of the parking lot and then drive to the service window to pay for and receive their orders. The following service alternative is being considered:

System C: A two-server operation with two service windows and two employees. The employee stationed at each window fills the order and takes the money for customers arriving at the window. The average service time for this alternative is 2.5 minutes for each server.

The following cost information is available.

Customer waiting time is valued at $26 per hour to reflect the fact that waiting time is costly to the fast-food business.

The cost of each employee is $5.5 per hour.

To account for equipment and space, an additional cost of $22 per hour is attributable to each server.

System C | $ |

Answer #1

**System
C**: this is an M/M/s queue system with s = 2 servers
and following parameters

Arrival rate = 25 cars per hour

Service rate = 60/2.5 = 24 cars per hour

Waiting cost, Cw = $ 26 per hour

Server cost, Cs = 22+5.5 = $ 27.5 per hour

System C cost per hour = $
**65.08 ***(this includes the server
cost and waiting cost)*

A fast-food franchise is considering operating a drive-up window
food-service operation. Assume that customer arrivals follow a
Poisson probability distribution, with an arrival rate of 24 cars
per hour, and that service times follow an exponential probability
distribution. Arriving customers place orders at an intercom
station at the back of the parking lot and then drive to the
service window to pay for and receive their orders. The following
three service alternatives are being considered:
System A: A single-server operation...

Question 2
A fast-food franchise is considering
operating a drive-up window food-service operation. Assume that
customer arrivals follow a Poisson probability distribution, with
an arrival rate of 24 cars per hour, and that service times follow
an exponential probability distribution. Arriving customers place
orders at an intercom station at the back of the parking lot and
then drive to the service window to pay for and receive their
orders. The following three service alternatives are being
considered:
A single-channel operation...

A manager of a fast food restaurant wants the drive-thru
employee to ask every fifth customer if he or she is satisfied with
the service. Who makes up the population?
A.
All survey respondents
B.
The proportion of customers who say they are satisfied with
their service
C.
All customers who use the drive-thru window of this fast food
restaurant
D.
All customers of this restaurant

1. Willow Brook National Bank operates a drive-up teller window
that allows customers to complete bank transactions without getting
out of their cars. On weekday mornings, arrivals to the drive-up
teller window occur at random, with an arrival rate of 6 customers
per hour or 0.1 customers per minute. Also assume that the service
times for the drive-up teller follow an exponential probability
distribution with a service rate of 54 customers per hour, or 0.9
customers per minute. Determine the...

Problem 15-3 (Algorithmic) Willow Brook National Bank operates a
drive-up teller window that allows customers to complete bank
transactions without getting out of their cars. On weekday
mornings, arrivals to the drive-up teller window occur at random,
with an arrival rate of 18 customers per hour or 0.3 customers per
minute. In the same bank waiting line system, assume that the
service times for the drive-up teller follow an exponential
probability distribution with a service rate of 30 customers per...

at the drive thru window of a local fast food restaurant there
is an 85% chance that a customer will be satisfied with the service
they received. Consider a random sample of 20 drive thru customers.
assuming the results are independent, find the probability that
a) at least 19 of the 20 drive thru customers are satisfied with
the service they received. P =
b)Calculate the mean and standard deviation of the random
variable.
please show work!!

28. You are the manager of a restaurant for a fast-food
franchise. Last month, the mean waiting time at the drive-through
window for branches in your geographical region, as measured from
the time a customer places an order until the time the customer
receives the order, was 3.8 minutes. You select a random sample of
81 orders. The sample mean waiting time is 3.99 minutes, with a
sample standard deviation of 0.9 minute.
At the 0.10 level of significance, is...

You are the manager of a restaurant for a fast-food franchise.
Last month, the mean waiting time at the drive-through window for
branches in your geographical region, as measured from the time a
customer places an order until the time the customer receives the
order, was 3.7 minutes. You select a random sample of 81 orders.
The sample mean waiting time is 3.41 minutes, with a sample
standard deviation of 0.9 minute. At the 0.01 level of
significance, is there...

You are the manager of a restaurant for a fast-food franchise.
Last month, the mean waiting time at the drive-through window for
branches in your geographical region, as measured from the time a
customer places an order until the time the customer receives the
order, was
3.7 minutes. You select a random sample of 64 orders. The sample
mean waiting time is 3.41 minutes, with a sample standard
deviation of 0.8 minute.
Find the p-value.
p-value= ( )
(Round to...

The First American Bank of Rapid City has one outside drive-up
teller. It takes the teller an average of 4 minutes to serve a bank
customer. Customers arrive at the drive-up window at a rate of 12
per hour. The bank operations officer is currently analyzing the
possibility of adding a second drive-up window, at an annual cost
of $20,000. It is assumed that arriving cars would be equally
divided between both windows. The operations officer estimates that
each minute’s...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 12 minutes ago

asked 12 minutes ago

asked 15 minutes ago

asked 31 minutes ago

asked 33 minutes ago

asked 33 minutes ago

asked 55 minutes ago

asked 55 minutes ago

asked 57 minutes ago

asked 58 minutes ago

asked 1 hour ago

asked 1 hour ago