Statistics: Principles and Methods

This book covers all the basic concepts of statistics - descriptive study of data, probability, sampling variation, statistical inference and special techniques for handling data - and illustrates them with practical examples that stimulate students' appreciation of the subject. It pays careful attention to the role of assumptions so that readers can develop a sophisticated approach to interpreting statistical results. Each chapter begins by identifying the practical goal underlying topics covered and ends with a summary of key ideas and formulas. Many examples and exercises based on real-life settings, including the use of computers are featured.