Chapter 5: Statistical
Inference I: Confidence Intervals 161
The Statistical Inference Process 161
Management Scenarios and Data Sets 162
General Principles of Confidence Intervals 164
Confidence Intervals on an Unknown Population Mean 171
Confidence Intervals on an Unknown Population
Proportion 178
Determining the Sample Size 181
Sample Size for
Forecasting a Close Election
Skip Confidence Intervals on Unknown
Population Variance 184
Key Ideas and Overview 189
Exercises 191
Appendices 202
Chapter 6:
Statistical Inference II: Hypothesis Testing on One
Population Parameter 205
Introduction 205
Management Scenarios and Data Sets 206
Hypothesis Testing on One Population Mean 208
Skip Small Sample 223
Skip Hypothesis Testing on One
Population Proportion 229
Key Ideas and Summary 233
Exercises 233
Appendices 244