It is necessary to control the percentage of solids in a product, so samples are taken randomly
Question:
(a) Calculate the values of
(b) Use the values of A3 and s to construct an x chart.
(c) Construct an s chart.
(d) Use the values of A2 and R to construct an x chart.
(e) Construct an R chart.
(f) Do the charts indicate that the percentage of solids in this product is in statistical control?
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Related Book For
Probability and Statistical Inference
ISBN: 978-0321923271
9th edition
Authors: Robert V. Hogg, Elliot Tanis, Dale Zimmerman
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