CHAPTER 10
Hypothesis Tests for Means, Ranks, or Proportions
R provides easy access to virtually any of the traditional hypothesis tests for means, ranks, and proportions one might need. In Chapter 10 you learn how to do hypothesis tests for one sample, for two samples, and for three or more samples. We will include both parametric tests and nonparametric tests, illustrating each with appropriate data. The statistics functions in base R are usually adequate, but it is often helpful to use additional packages for their enhanced features.
Before we delve into hypothesis testing, let us briefly review the scales of measurement and their relationship ...
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