JMP® Means Business: Statistical Models for Management

Chapter 13. Tests for Independence

• 13.1 Statistical Independence of Two Nominal Variables 340

  • 13.1.1 Introduction 340

  • 13.1.2 Review of Conditional Probability and Independent Events 341

  • 13.1.3 Statistical Hypotheses of Independence of Two Nominal Variables 345

  • 13.1.4 Example 1: Executive Transfers 346

• 13.2 Stratification in Cross-Classified Data 352

  • 13.2.1 What Is Stratification of Cross-Classified Data? 352

  • 13.2.2 Example 1: Consumer Preference of Two Cola Brands 353

  • 13.2.3 Example 2: On-Time Performance of Package Delivery Companies 357

  • 13.2.4 Example 3: Mortality after a High-Risk Procedure in Two Hospitals 362

• 13.3 Summary 364

• 13.4 Problems 364

• 13.5 Case Study: Financial Management Customer Satisfaction Survey 366

• 13.6 References 367

13.1 Statistical Independence ...