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The Pickleball Serve and Theories of Variability

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Credit: Michael & Sherry Martin

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Pickleball is arguably the fastest-growing sport in the United States, especially among baby-boomer retirees.

‘Any Theory Is Correct in Its Own World...

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As statistical methods become more embedded in everyday organizational quality improvement efforts, I find that a key concept is often woefully misunderstood, if it is even taught at all. W.

Understanding Capability of Production Processes and Measurements

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In a general sense, capability is the ability to do something. Within manufacturing, capability is given a much more specific definition. It is an expression of the accuracy of a process or equipment, in proportion to the required accuracy.

Avoiding Bias Correction Confusion

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Recently I have had several questions about which bias correction factors to use when working with industrial data. Some books use one formula, other books use another, and the software may use a third formula. Which one is right?

Using Control Charts in Software Applications

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Whatever the process or type of data collected, all data display variation. This is also true in software development.

Analysis of Means Techniques

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During the past three months James Beagle and I presented columns that made extensive use of analysis of means techniques.

Predicting the Next Stock Market ‘Flash Crash’

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Soon after the Great Recession, the U.S. stock markets plunged—and rebounded within 36 minutes.

Why Use Control Charts?

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In everyday language, “in control” and “under control” are synonymous with “in specification.” Requirements have been met. Things are OK. No trouble.

Introducing the AIAG-VDA DFMEA

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During the early 1980s, GM, Ford, and Chrysler established the Automotive Industry Action Group (AIAG), a not-for-profit organization with the mission “To improve its members’ competitiveness through a cooperative effort of North American vehicle manufacturers and th

Déjà Vu All Over Again?

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Recently, I’ve had a sad, increasing sense of déjà vu. Twitter has become even more vacuous, and LinkedIn has quickly devolved into a business version of Facebook.

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