Title: Easy to understand but beware
Review: This text is an easy to understand review of Six Sigma; however, I would not use it as a reference. I've found several instances where formulas are incorrect. For example, calculating Cp is done using the formula (USL-LSL)/6s. The book makes a minor omission, leaving out the parentheses. There are misspellings. There is one incidence where the typesetter transposed a "." with a "/", making a fraction out of a decimal.These errors would not affect a certified, experienced practitioner aside from perhaps making him or her snort coffee onto a keyboard; however, if the person reading the book is not experienced or mathematically savvy (read most managers), the errors could affect outcome of a project adversely. I bought the book as a potential text for teaching managers about six-sigma concepts and basics. It may still work for that purpose; however, a book on a quality improvement method should not have this many, this magnitude of errors.I would not recommend this book.
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