Business Statistics For Dummies

Introduction 1

Part I: Getting Started with Business Statistics 5

Chapter 1: The Art and Science of Business Statistics 7

Chapter 2: Pictures Tell the Story: Graphical Representations of Data 23

Chapter 3: Finding a Happy Medium: Identifying the Center of a Data Set 39

Chapter 4: Searching High and Low: Measuring Variation in a Data Set 55

Chapter 5: Measuring How Data Sets Are Related to Each Other 71

Part II: Probability Theory and Probability Distributions 91

Chapter 6: Probability Theory: Measuring the Likelihood of Events 93

Chapter 7: Probability Distributions and Random Variables 111

Chapter 8: The Binomial, Geometric, and Poisson Distributions 121

Chapter 9: The Uniform and Normal Distributions: So Many Possibilities! 139

Chapter 10: Sampling Techniques and Distributions 165

Part III: Drawing Conclusions from Samples 185

Chapter 11: Confidence Intervals and the Student’s t-Distribution 187

Chapter 12: Testing Hypotheses about the Population Mean 201

Chapter 13: Testing Hypotheses about Multiple Population Means 233

Chapter 14: Testing Hypotheses about the Population Mean 251

Part IV: More Advanced Techniques: Regression Analysis and Forecasting 281

Chapter 15: Simple Regression Analysis 283

Chapter 16: Multiple Regression Analysis: Two or More Independent Variables 309

Chapter 17: Forecasting Techniques: Looking into the Future 327

Part V: The Part of Tens 351

Chapter 18: Ten Common Errors That Arise in Statistical Analysis 353

Chapter 19: Ten Key Categories of Formulas for Business Statistics 361

Index 373