Suppose that you are working for a chain restaurant and wish to
design a promotion to disabuse the public of notions that the
service is slow. You decide to institute a policy that any customer
that waits too long will receive their meal for free. You know that
the wait times for customers are normally distributed with a mean
of 17 minutes and a standard deviation of 3 minutes. Use statistics
to decide the maximum wait time you would advertise to customers so
that you only give away free meals to at most 1.5% of the
customers.
a. Determine an estimate of an advertised maximum wait time so that
1.5% of the customers would receive a free meal. Round to one
decimal place. minutes
b. Include a graph illustrating the solution. For the graph do NOT
make an empirical rule graph, just include the mean and the mark
off the area that corresponds to the 1.5% who would receive the
refund. There is a Normal Distribution Graph generator linked in
the resources area. Combine the above into as single file and
upload using the link below. Choose FileNo file chosen
c. Write a response to the vice president explaining your
prescribed maximum wait time. Structure your essay as
follows:
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