Calculate QC Process Tolerance
function to calculate a standardized process tolerance with sigma unit
process_tolerance(LSL, USL, QC.Sigma)
LSL |
number, customer's lower specification limit. |
USL |
number, customer's upper specification limit. |
QC.Sigma |
number, the sigma value determined from an XmR plot or a Studentized (e.g., xBar) analysis. |
numeric, standardized process tolerance value in sigma units
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