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If Cpk or Ppk is less than 1.0 |
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If Cpk or Ppk is greater than 1.0 |
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| If Cp or Pp is less than 1.0 |
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Variation in the process should be reduced. |
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Not mathematically possible. Check for an error in calculations. |
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| If Cp or Pp is greater than 1.0 |
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The process should be centered within its specifications. |
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Fine tune and improve the process continuously. Increase the Cpk target. |
