A Manufacturer Embarking on a Six Sigma Program Sets the Goal

question 39

Multiple Choice

A manufacturer embarking on a Six Sigma program sets the goal of having True Six Sigma capability for all processes by the end of the month. If their current process capability index on a key metric is less than 2.0 and the process capability ratio is 1.25, what must happen with the process standard deviation?

• A) The process standard deviation must be reduced by about 25%.
• B) The process standard deviation must be reduced by about 37%.
• C) The process standard deviation must be reduced by about 50%.
• D) The process standard deviation must be reduced by about 67%.

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