Book excerpt: This fully revised bestseller integrates Lean methodologies and certification coverage and features bonus videos, quizzes, and sample files The Six Sigma Handbook, Fourth Edition reveals how to realize significant gains in quality, productivity, and sales in any organization. This new edition offers vast improvements to examples and offers videos, sample data files for download, and online quizzes for all levels of Six Sigma certification. The content features further integration of Lean methods and examples, healthcare examples, risk management, and case studies of various deployment and analysis techniques. Includes two sample quizzes for Six Sigma certification, one for Green Belt candidates and one for Black Belt candidates Links to five videos that walk you through specific processes, such as Minitab functions, statistical process control, and how to read a Pareto chart Clearly defines the management responsibilities and actions necessary for successful deployment. Fully incorporates Lean, problem-solving, and statistical techniques within the Six Sigma methodology