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Q.7 The data shown in Table I are X and R values for 15 samples. Set up X and R charts on this process.
Q.7 The data shown in Table I are X and R values for 15 samples. Set up X and R charts on this process. Does this process seem to be in statistical control comment? Sample No. X R 34.5 3 34.2 4 31.6 4 31.5 4 35.0 5 34.1 6 32.6 4 33.8 |3 34.8 7 33.6 8 31.9 3 38.6 | 9 3. 4 7. 8. 10 12 35.4 8 34.0 6 37.1 5 13 14 15
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The Xbar and R control charts can be determined as follo...
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Introduction To Statistical Quality Control
Authors: Douglas C Montgomery
7th Edition
1118146816, 978-1-118-3225, 978-1118146811
