EXCERCISE 1 1- Please describe the differences among Black Belts, Green Belts and Master Black blets in a six sigma program. 2. Describe the steps in a six sigma breakthrough strategy for quality improvement. 3- Develop a quality improvement project for the university cafeteria or a local convenient store (Mauritanian). EXCERCISE 2 The COLONIAL HOUSE FURNITURE Company manufactures four-drawer oak filing cabinets in six stages: In the first stage, the boards forming the walls of the cabinet are cut: In the second stage, the front drawer panels are woodworked: In the third stage, the boards are sanded and finished: In the fourth stage, the boards are cleaned, stained, and painted with a clear finish: In the fith stage, the hardware for pulls, runners, and fitting is installed : In the final stage, the cabinets are assembled. Inspection occurs at each stage of the process, and the average percentage of goods-quality units are as follows: STAGE 1 2 3 4 5 6 AVERAGE PERCENTAGE GOOD QUALITY 87% 91% 94% 93% 93% 96 The cabinets are produced in weekly production runs with a product input for 300 units. a. Determine the weekly product yield of good quality cabinets. b. What would weekly product input have to be in order to achieve a final weekly product yield of 300 cabinets