The data in Tensile represent the tensile strengths of bolts of cloth. The data were collected in

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The data in Tensile represent the tensile strengths of bolts of cloth. The data were collected in subgroups of three bolts of cloth over a 25 hour period.
a. Construct a control chart for the range.
b. Construct a control chart for the mean.
c. Is the process in control?
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Business Statistics A First Course

ISBN: 9780321979018

7th Edition

Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan

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