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Six Sigma Green Belt Exam Prep

Category - Six Sigma Green Belt

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The Six Sigma approach allows for a shift of as much as ______ standard deviations, so it is essentially a ±4.5 standard deviation goal.
  1. 3.0
  2. 3.5
  3. 1.0
  4. 1.5
Explanation
Answer: D - The Six Sigma approach allows for a shift of as much as 1.5 standard deviations.
Key Takeaway: The Six Sigma approach is concerned with the number of sigmas that will fit between the process mean and the nearest specification limit. A process that fits 6 sigmas between a mean and its nearest specification limit in the short term will experience a 1.5 shift that will result in only 4.5 sigmas fitting.
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