JMP® Means Business: Statistical Models for Management

Chapter 17. Multiple Regression with Nominal Variables

• 17.1 Introduction 482

• 17.2 Detail Example: Loan Amount versus Sales Revenues 483

• 17.3 Difference of Intercepts of Two Parallel Lines 485

  • 17.3.1 Using JMP for Regression Analysis with a Nominal Variable 485

  • 17.3.2 Interpretation of Parameter Estimates and Associated Hypothesis Tests 489

• 17.4 Regression Models Including Nominal Variables with Three or More Levels 490

• 17.5 Both Intercept and Slope of Two Lines Are Different 495

  • 17.5.1 Detail Example: Growth versus General Equity Fund 495

  • 17.5.2 Using JMP to Model Two Slopes and Two Intercepts 496

• 17.6 Summary 501

• 17.7 Problems 501

• 17.8 Case Study: Coffee Sales 505

17.1 Introduction

In the previous chapter, multiple regression analysis used only continuous ...