This book focuses on building linear statistical models and on developing skills for implementing regression analysis in real life situations. The fifth edition now includes applications for engineering, sociology, psychology, etc., as well as traditional business applications. The authors use material from news articles, magazines, professional journals, and actual consulting problems to illustrate real business problems and how to solve them by using the tools of regression analysis.
This book is not really your general “math” textbook. The authors clearly aim to make the material accessible even to readers without a strong mathematical background, which mathematicians or statisticians may find insufficiently rigorous. While the exposition and overall structure are not my favorite, the book does cover a wide and comprehensive range of topics. Importantly, it goes beyond model construction and assumptions to emphasize what regression models actually mean, both conceptually and in practice, and how to exercise sound judgment not only about the model itself but also about the context in which it is applied, the consequences of its underlying assumptions, and the caveats and potential pitfalls that may arise. This interpretive and context-aware emphasis is sometimes forgotten in practice, despite being crucial to the discipline and one of the features that distinguishes statistics from areas where interpretability is often secondary, such as our neighbouring discipline of machine learning.