Reconsider the data presented in Exercise 6.21. (a) Rework both parts (a) and (b) of Exercise 6.21
Question:
(a) Rework both parts (a) and (b) of Exercise 6.21 using the x and s charts.
(b) Does the s chart detect the shift in process variability more quickly than the R chart did originally in part (b) of Exercise 6.21?
In Exercise 6.21
Transcribed Image Text:
TABLE GE.12 Streneth Data for Exercise 6.21 Sample Number 1 83.0 呂1.2 78.7 75.7 77.0 791 7.3 2 88.6 78.3 78.8 710 84.2 80.2 17.6 85.7 758 4.3 75.2 810 80.4 10.4 4808 44 825 74.1 75.7 754 83.4 78.4 82.6 78.2 78.9 80.3 5.2 6 15.3 79.9 873 89.7 818 828 14.5 7 74.5 78.0 80.8 734 79. 77.3 7.4 8 79.2 84.4 81.5 86.0 43 81.1 14 9 80.5 86.2 16.2 64. 80.2 81.4 9.9 10 75.7 75.2 1.1 82.1 74.3 75.7 10.9 80.0 81.5 78.4 73.8 78. 784 7.7 12 80.6 81.8 79.3 73.8 81.7 79.4 8.0 13 82.7 8.3 9. 82.0 79.5 80.9 3.6 14 79.2 74.9 78.6 77.7 75.3 77.1 4.3 15 85.5 82.1 82.8 73.4 71.7 79.1 13.8 16 78.8 79.6 80.2 79.1 808 79.7 2.0 17 82.1 78.2 75.5 78.2 82. 79.2 6.6 18 845 16.9 83.5 812 79.2 811 76 1979.0 178 81.2 84.4 81.6 80.8 6.6 20 84.5 73.1 78.678.7 80.6 79.1 11.4
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Related Book For
Introduction to Statistical Quality Control
ISBN: 978-1118146811
7th edition
Authors: Douglas C Montgomery
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