# J.D. Power and Associates calculates and publishes various statistics concerning car quality. The initial quality score measures

## Question:

a. What assumptions must be made in order for X to be distributed as a Poisson random variable? Are these assumptions reasonable?

Making the assumptions as in (a), if you purchased a 2009

Ford, what is the probability that the new car will have

b. Zero problems?

c. Two or fewer problems?

d. Give an operational definition for problem. Why is the operational definition important in interpreting the initial quality score?

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**Related Book For**

## Basic Business Statistics Concepts And Applications

**ISBN:** 9780132168380

12th Edition

**Authors:** Mark L. Berenson, David M. Levine, Timothy C. Krehbiel