Discuss the differences between 'special cause' and 'common cause' variation, giving at least one example of each type. List the seven types of waste and give at least one example for each from your daily life. Compare Lean with Six Sigma, and then describe the strengths and weaknesses of the Lean Six Sigma method. Use an example to explain how Lean and Six Sigma work together in a way that your non-engineering colleagues and/or friends/family members will appreciate/understand. Define the meaning of "cost of poor quality"? Give examples to support your definition? Suggest some prevention techniques to prevent the cost of poor quality.