Suppose that your business is operating at the four-and-a-half-sigma quality level. If projects have an average improvement rate of 50% annually, how many years will it take to achieve six-sigma quality?
Answer to relevant QuestionsExplain why it is important to separate sources of variability into special or assignable causes and common or chance causes. 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 ...Reconsider the fast-food restaurant out considered in the chapter. a. What results do you obtain if the probability of good quality on each meal component was 0.999? b. What level of quality on each meal component would be ...What is meant by the statement that a process is in a state of statistical control? Construct a normal probability plot of the Viscosity data in Exercise 4.7. Does the assumption that process yield is well modeled by a normal distribution seem reasonable?
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