The manufacturer of Boston and Vermont asphalt shingles constructed control charts and analyzed several quality characteristics. One
Question:
a. construct a control chart for the range.
b. construct a control chart for the mean.
c. is the process in control?
d. Repeat (a) through (c), using the 19 production days for Vermont shingles.
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Related Book For
Business Statistics A First Course
ISBN: 9780321979018
7th Edition
Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan
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