Include index.

The fourth edition of An Introduction to Statistical Methods and Data Analysis is an in-depth revision and modernization that further enhances the practical aspects of the original text. The following are the most notable improvements: Reorganization of the table of contents into four parts - Gathering the data, Summarizing data, Analyzing data, and communicating and documenting data - to reflect how data is treated in the real world ; Introduction to quality control and process improvement ; Inclusion of Bayes's formula ; Inclusion of output in Minitab, SAS, and Execustat, as well as computer simulations, a clinical database, and a data disk ; Introduction of applications in the following fields: agriculture, business, economics, engineering, environmental sciences, medicine, law, political science, psychology, and sociology.