edition, EXCEL 2003 instructions have been replaced by EXCEL 2007 instructions for all the EXCEL exercises. In addition, chi-square goodness-of-fit tests have been added to Chapter 13. The remainder of the book--including page numbers and chapter exercises--is identical to the first edition. As in the original text, the writing is excellent--clear, conversational, and supportive--and the author's unique approach is again successful in demystifying the subject, even for students who are not wholly confident in their math skills.

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