This page is designed to give a probability plot of the time to signaling an alarm (the run-length), for a Shewhart control chart with or without supplementary run rules.
Online Statistical Calculators for Acceptance Sampling and Quality Control
This page is designed to give a probability plot of the time to signaling an alarm (the run-length), for a Shewhart control chart with or without supplementary run rules.
Quality, quality, quality: never waver from it, even when you don't see how you can afford to keep it up. When you compromise, you become a commodity and then you die.
Gary Hirshberg