Presenting statistics from the point of view of working statisticians the book gives examples and exercises based on real data. This second edition has a refined and reorganized the text. The presentation of key concepts has been clarified and consolidated; notation has been simplified wherever possible; and many new data sets have been added. To offer students the opportunity to apply their knowledge in a realistic context, and in recognition of the utility of statistical software, computer exercises now conclude each chapter. In conjunction with this text there is - an instructor/solution manual (including data disks for the (IBM and MAC), a printed or computerized test bank, transparency masters, minitab manual and a student version of data desk with disk, MAC only.