This easy-to-understand reference in the popular Demystified series teaches the methods of Six Sigma, explains their applications, and tests expertise without confusing statistics and formulas. Expert Paul Keller and Six Sigma guru Tom Pyzdek describe helpful tools for Six Sigma teams, identifying their uses, limitations, and application during multiple stages of DMAIC. They also outline additional tools for full effectiveness and provide necessary calculations and assumptions. In addition, they provide: Detailed examples and diagrams Practical exercises and complete solutions A final exam to test overall knowledge Materials ideal for self-study or for training groups of Black Belts and Green Belts