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JMP for Basic Univariate and Multivariate Statistics, 2nd Edition by Ph. D. Edward J. Stepanski, Ph. D. Larry Hatcher, Psych. D. Psych. Norm O'Rourke, Ann Lehman

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t-Tests: Independent Samples and Paired Samples

Overview

This chapter describes the differences between the independent-samples t-test and the paired-samples t-test, and shows how to perform both types of analyses. An example of a research design is developed that provides data appropriate for each type of t-test. With respect to the independent-samples test, this chapter shows how to use JMP to determine whether the equal-variances or unequal-variances t-test is appropriate, and how to interpret the results. There are analyses of data for paired-samples research designs, with discussion of problems that can occur with paired data.

Overview ...

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