A small manufacturer of metal ring seals for aircraft engines has been asked by its major customer
Question:
a. Set up the sample mean and range control charts for this operation, Is the process in control?
b. The seventh sample contains the following values: 0.124, 0.1252, 0.1295, 0.1262, and 0.1275. Using the control charts from part a, is the process still in control?
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Related Book For
Operations Management
ISBN: 978-0071091428
4th Canadian edition
Authors: William J Stevenson, Mehran Hojati
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