The Importer’s (Brief) Guide to Acceptance Sampling and Why It Matters
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You can't always do 100-percent inspection
Autocorrelated Data
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Credit: Richard Carter
Last month I mentioned that we can put autocorrelated data on a process behavior chart. But what is autocorrelated data and what does it tell us about our processes? This article will use examples to answer both of these questions.
What Do ‘Above’ and ‘Below’ Average Really Mean?
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Rankings with alleged helpful feedback might feel appropriate but should be avoided at all costs
Baby Steps With Quality Improvement
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It's never too early to get started with SPC
We All Have to Use Less Than Perfect Data
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Listen to the voice of the process—a practical approach championed by Walter Shewhart.