Electronic Statistical Textbook
This site provides the marketing research professional with a wealth of information in a fast and easy to use format. From elementary to advanced statistics, this dynamic tool provides an understanding of the foundation and application of a wide variety of analytical techniques, including laboratory research, business statistics and forecasting, social science statistics and survey research, data mining, engineering and quality control applications. 
StatSoft, Inc. (2001). Electronic Statistics Textbook. Tulsa, OK: StatSoft

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