Use all 60 observations on oxide thickness. (a) Set up an individuals control chart with estimated
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(a) Set up an individuals control chart with σ estimated by the average moving range method.
(b) Set up an individuals control chart with σ estimated by the median moving range method.
(c) Compare and discuss the two control charts.
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Related Book For
Introduction to Statistical Quality Control
ISBN: 978-1118146811
7th edition
Authors: Douglas C Montgomery
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