Learning Objectives

Upon completion of this chapter, students should know

When to use a one-way analysis of variance test.

Why multiple t tests cannot be used when there are more than two levels of an independent variable.

How variation (variance estimates) is partitioned between and within groups.

The interpretation of the F-ratio.

How to compute and interpret one-way analysis of variance.

The purpose of post-hoc tests.

How to compute and interpret the HSD.

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