Question

The marker on your new car indicates that you have already run the first 3,000 miles, at which point the manufacturer recommends a general overhaul. You take your car to a recognized garage and request a review. Upon arrival in the garage there are 8 mechanics available, two of which are new. For a new mechanic, the time it takes to perform the overhaul is a random variable that follows a normal distribution with an expected value of 1 hour and a standard deviation of 5 minutes. For an experienced mechanic, the time to perform the overhaul follows an exponential distribution with an expected value of 40 minutes.

If your car will be randomly assigned to any of the available mechanics,

to. What is the probability that your car is ready in less than 1 hour?

b. If your car is ready in less than an hour, what is the probability that it was serviced by an experienced mechanic?

Answer #1

You have observed that the number of hits to your web site
follows a Poisson distribution at a rate of 3 per hour. Let X is
the time between hits and it follows Exponential distribution.
1. What is an average time in minutes between two hits?
2. What is the probability, that you will need to wait less than
40 minutes between two hits?
3. What is the probability, that there will be 2 hits in the
next hour?
1....

Ocala Software Systems operates a technical support center for
its software customers. If customers have installation or use
problems with Ocala software products, they may telephone the
technical support center and obtain free consultation. Currently,
Ocala operates its support center with one consultant. If the
consultant is busy when a new customer call arrives, the customer
hears a recorded message stating that all consultants are currently
busy with other customers. The customer is then asked to hold and
is told...

Your company decided to purchase the bricks needed for a
construction project from “Bricks of New York”, which is a
well-known brick and mortar company in the area. Generally, the
truck containing bricks arrive at the site after 8am in the
morning. In the event that the truck arrives after 9am, there is a
labor surcharge of $1000 incurred each time. You will need 40 days
of such truck delivery from January 1 to February 9 during each
year of...

Ocala Software Systems operates a technical support center for
its software customers. If customers have installation or use
problems with Ocala software products, they may telephone the
technical support center and obtain free consultation. Currently,
Ocala operates its support center with one consultant. If the
consultant is busy when a new customer call arrives, the customer
hears a recorded message stating that all consultants are currently
busy with other customers. The customer is then asked to hold and
is told...

Problem 11-15
(Algorithmic)
Ocala Software Systems
operates a technical support center for its software customers. If
customers have installation or use problems with Ocala software
products, they may telephone the technical support center and
obtain free consultation. Currently, Ocala operates its support
center with one consultant. If the consultant is busy when a new
customer call arrives, the customer hears a recorded message
stating that all consultants are currently busy with other
customers. The customer is then asked to hold...

Muffler Magic*
Muffler Magic is a fast-growing chain of 25 automobile service
centers in Nevada. Originally started 20 years ago as a muffler
repair shop by Ronald Brown, the chain expanded rapidly to new
locations, and as it did so Muffler Magic also expanded the
services it provided, from muffler replacement to oil changes,
brake jobs, and engine repair. Today, one can bring an automobile
to a Muffler Magic shop for basically any type of service, from
tires to mufflers...

Multiple Choice
Select the best answer from the available choices for each
question.
Which of the following is NOT part of the definition of
a sample space S?
S can be discrete or continuous
Each outcome must be in S at most once
Each element in S is equally likely
Each outcome must be in S at least once
S is a set of possible outcomes in an experiment
Three A’s, three B’s, and two C’s are arranged at
random...

Sign In
INNOVATION
Deep Change: How Operational Innovation Can Transform Your
Company
by
Michael Hammer
From the April 2004 Issue
Save
Share
8.95
In 1991, Progressive Insurance, an automobile insurer based in
Mayfield Village, Ohio, had approximately $1.3 billion in sales. By
2002, that figure had grown to $9.5 billion. What fashionable
strategies did Progressive employ to achieve sevenfold growth in
just over a decade? Was it positioned in a high-growth industry?
Hardly. Auto insurance is a mature, 100-year-old industry...

What tools could AA leaders have used to increase their
awareness of internal and external issues?
???ALASKA AIRLINES: NAVIGATING CHANGE
In the autumn of 2007, Alaska Airlines executives adjourned at
the end of a long and stressful day in the
midst of a multi-day strategic planning session. Most headed
outside to relax, unwind and enjoy a bonfire
on the shore of Semiahmoo Spit, outside the meeting venue in
Blaine, a seaport town in northwest
Washington state.
Meanwhile, several members of...

Please read the article and answear about
questions.
Determining the Value of the Business
After you have completed a thorough and exacting investigation,
you need to analyze all the infor- mation you have gathered. This
is the time to consult with your business, financial, and legal
advis- ers to arrive at an estimate of the value of the business.
Outside advisers are impartial and are more likely to see the bad
things about the business than are you. You should...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 14 minutes ago

asked 24 minutes ago

asked 34 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago