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Business Statistics For Dummies, 2nd Edition
book

Business Statistics For Dummies, 2nd Edition

by Alan Anderson
January 2024
Beginner content levelBeginner
400 pages
9h 3m
English
For Dummies
Content preview from Business Statistics For Dummies, 2nd Edition

Chapter 13

Applications of the Chi-Square Distribution

IN THIS CHAPTER

Bullet Introducing the chi-square distribution

Bullet Testing hypotheses about the variance of a single population

Bullet Implementing goodness of fit tests with the chi-square distribution

This chapter covers two types of hypothesis tests: tests about the population variance and goodness of fit tests. Goodness of fit tests determine whether a population follows a specified distribution, such as the normal distribution (for a thorough introduction to the normal distribution, see Chapter 9). Because many business applications rely on the assumption of normality, goodness of fit tests are particularly valuable.

To implement a goodness of fit test, you use a continuous distribution known as the chi-square distribution. This distribution has many interesting features, which I explain in detail and illustrate throughout this chapter; its properties are quite different from the normal distribution.

I also explain how to use a chi-square table to compute probabilities under the chi-square distribution, and I show you how to compute moments for the chi-square distribution. (Moments are summary measures of a probability distribution that ...

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Publisher Resources

ISBN: 9781394219926Purchase Link