# Question: Dan McClure owns a thriving independent bookstore in artsy New

Dan McClure owns a thriving independent bookstore in artsy New Hope, Pennsylvania. He must decide how many copies to order of a new book, Power and Self- Destruction, an exposé on a famous politician's lurid affairs. Interest in the book will be intense at first and then fizzle quickly as attention turns to other celebrities. The book's retail price is \$20 and the wholesale price is \$12. The publisher will buy back the retailer's leftover copies at a full refund, but McClure Books incurs \$4 in shipping and handling costs for each book returned to the publisher. Dan believes his demand forecast can be represented by a normal distribution with mean 200 and standard deviation 80.
a. Dan will consider this book to be a blockbuster for him if it sells more than 400 units. What is the probability Power and Self-Destruction will be a blockbuster?
b. Dan considers a book a "dog" if it sells less than 50 percent of his mean forecast. What is the probability this exposé is a "dog"?
c. What is the probability demand for this book will be within 20 percent of the mean forecast?
d. What order quantity maximizes Dan's expected profit?
e. Dan prides himself on good customer service. In fact, his motto is "McClure's got what you want to read." How many books should Dan order if he wants to achieve a 95 percent in-stock probability?
f. If Dan orders the quantity chosen in part e to achieve a 95 percent in-stock probability, then what is the probability that "Dan won't have what some customer wants to read" (i.e., what is the probability some customer won't be able to purchase a copy of the book)?
g. Suppose Dan orders 300 copies of the book. What would Dan's expected profit be in this case?

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