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Who were the first persons to recommend the use of Shewhart control charts with the EWMA charts with low values of λ?

Who were the first persons to recommend the use of Shewhart control charts with the EWMA charts with low values of λ? Correct Answer Woodall and Mahmoud

Woodall and Mahmoud (2005) recommended to always use a Shewhart control chart with a EWMA chart (especially when λ is small), as one way to counteract the signal resistance’s high value.

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