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Published in:
2019 | OriginalPaper | Chapter
6. Comparing Groups: Statistical Tests
Authors : Chris Chapman, Elea McDonnell Feit
Published in: R For Marketing Research and Analytics
Publisher: Springer International Publishing
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Abstract
In Chap. 5 we saw how to break out data by groups and inspect it with tables and charts. In this chapter we continue our discussion and address the question, “It looks different, but is it really different?” This involves our first inferential statistical procedures: chi-square, t-tests, and analysis of variance (ANOVA). In the final section, we introduce a Bayesian approach to compare groups.