As cereal boxes are filled in a factory, they are weighed for their contents by an automatic
Question:
a. Calculate the center line and control limits for the x and R charts from these data.
b. Plot each of the 20 samples on the x-bar and R control charts and determine which samples are out of control.
c. Do you think the process is stable enough to begin to use these data as a basis for calculating x-bar and R-bar and to begin to take periodic samples of 3 for quality control purposes?
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Related Book For
Operations Management in the Supply Chain Decisions and Cases
ISBN: 978-0073525242
6th edition
Authors: Roger Schroeder, M. Johnny Rungtusanatham, Susan Goldstein
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