Six Sigma Green Belt Certification Practice Exam

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Prepare for the Six Sigma Green Belt Certification Exam with our engaging quiz, featuring multiple-choice questions along with hints and detailed explanations. Boost your confidence and knowledge as you get ready for one of the most respected process improvement certifications!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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In Six Sigma, which tool is primarily used to identify and eliminate the causes of defects?

Fishbone diagram
Control chart
Histogram
Pareto chart

The correct answer is: Fishbone diagram

The Fishbone diagram, also known as the Ishikawa diagram or cause-and-effect diagram, is a crucial tool in Six Sigma for identifying and eliminating the causes of defects. This diagram visually represents potential causes of a specific problem by categorizing them, typically into major categories such as people, processes, equipment, materials, measurements, and environment. By utilizing this structure, teams can systematically examine each category to uncover root causes of defects. This method is particularly valuable during the Analyze phase of the DMAIC (Define, Measure, Analyze, Improve, Control) process, as it encourages collaborative brainstorming and helps teams focus their efforts on the underlying causes rather than symptoms. Overall, the Fishbone diagram facilitates a thorough investigation into complex problems, supporting a comprehensive approach to defect elimination in processes.