Six Sigma is a term used to describe process improvement initiatives using sigma-based process measures and/or striving for Six Sigma level performance. The processes are executed by Six Sigma Green Belts and Six Sigma Black Belts, and overseen by Six Sigma Master Black Belts.

(a) Professionals who earn Six Sigma certification become key stakeholders in improving the quality of operations within their organizations. Many of todays leading organizations synthesize Six Sigma standardization practices with Lean manufacturing methods that cut waste to make their organizations as efficient as possible. Some of the companies that have successfully put Lean Six Sigma principles into action include 3M, Xerox, and BAE Systems.

As an executive at the training facility providing the Six Sigma certification, elaborate on the responsibility of Six Sigma Green Belts, Six Sigma Black Belts and Six Sigma Master Black Belts to those who are interested to enroll into the program. (10 MARKS)

(b) The Six Sigma definemeasureanalyseimprovecontrol approach resulted in a reduction of tolerance-related problems and improved the first pass yield from 85% to 99.4%. Data were collected on all possible causes and regression analysis, hypothesis testing, Taguchi methods, classification and regression tree, etc. were used to analyse the data and draw conclusions.

A Six Sigma project is executed by team members from various departments through Define, Measure, Analyze, Improve and Control (DMAIC) methodology. You are required to provide a report to the top management on the main objectives of each phase. (10 MARKS)