Essential Statistics Using SAS University Edition

Chapter 5: Analysis of Variance

5.1 Introduction

5.2 One-Way ANOVA

5.2.1 Initial Examination of Teaching Arithmetic Data with Summary Statistics and Box Plots

5.2.2 Teaching Arithmetic: Are Some Methods for Teaching Arithmetic Better than Others?

5.3 Two-Way ANOVA

5.3.1 A First Look at the Rat Weight Gain Data Using Box Plots and Numerical Summaries

5.3.2 Weight Gain in Rats: Do Rats Gain More Weight on a Particular Diet?

5.4 Unbalanced ANOVA

5.4.1 Summarizing the Post-Natal Depression Data

5.4.2 Post-Natal Depression: Is a Child’s IQ Affected?

5.5 Exercises

5.1 Introduction

In this chapter, we shall describe how to analyse data in which a response variable of interest is measured in different levels of one or more categorical factor variables ...