What process width is typically used when computing the process capability index C_p? A) 1 $\sigma$ B) 2 $\sigma$ C) 3 $\sigma$ D) 4 $\sigma$ E) 6 $\sigma$

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The process capability index (Cpk) typically uses a process width of 6 standard deviations (6σ), which represents the range within which 99.73% of the process outputs are expected to fall if the process is centered and stable.

What Process Width Is Typically Used When Computing the Process σ\sigmaσ

What Process Width Is Typically Used When Computing the Process $\sigma$