Chapter 5: The t-Test
In Chapter 3, a sampling distribution, the t-distribution, was introduced. In Chapter 4, you learned how to use the t-distribution to make an important inference, an interval estimate of the population mean. Here you will learn how to use that same t-distribution to make more inferences, this time in the form of hypothesis tests. You will learn how to use the t-test in three different types of hypotheses. You will also have a chance to use the interactive Excel templates to apply the t-test in alternative situations. Before we start to learn about those tests, a quick review of the t-distribution is in order.
Adapted from Introductory Business Statistics with Interactive Spreadsheets — 1st Canadian Edition, by Mohammad Mahbobi (Thompson Rivers University) and Thomas K. Tiemann (Elon University), published by BCcampus, licensed under CC BY 4.0. Changes were made: reformatted as an accessible XYZ web edition with interactive XYZ-tool worksheets. The cover image (CC BY-NC 2.0, third party) is excluded from this edition. License: CC-BY-4.0.