One of the objectives of the control plan in DMAIC is to “hold the gain.” What does this mean?
Answer to relevant QuestionsIs there a point at which seeing further improvement in quality and productivity isn’t economically advisable? Discuss your answer. Suppose that your business is operating at the three-sigma quality level. If projects have an average improvement rate of 50% annually, how many years will it take to achieve six-sigma quality? Suppose that you manage an airline reservation system and want to improve service quality. What are the important CTQs for this process? What are the KPIVs and KPOVs? How do these relate to the customer CTQs that you have ...What are chance and assignable causes of variability? What part do they play in the operation and interpretation of a Shewhart control chart? Discuss the logic underlying the use of three-sigma limits on Shewhart control charts. How will the chart respond if narrower limits are chosen? How will it respond if wider limits are chosen?
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