CHAPTER 8 416 Hypothesis Testing with Two Samples 8.1 Testing the Difference Between Means (Independent Samples, s1 and s2 Known) 8.2 Testing the Difference Between Means (Independent Samples, s1 and s2 Unknown) Case Study 8.3 Testing the Difference Between Means (Dependent Samples) 8.4 Testing the Difference Between Proportions Uses and Abuses Real Statistics—Real Decisions Technology According to a study published in the Journal of General Internal Medicine, 50% of people who use yoga are college-educated, while only 23% of people who do not use yoga are college-educated.
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