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The pH values of a liquid are measured three times per day during a period of 24 days. Draw appropriate control charts and interpret the result. Subgroup Obs₁ Obs2 Obs3 5.8 6.4 1 2 3 4 5 6 7 8 9 10 11 12 13. 14 15 16 17 18 19 20 21 22 23 24 6 5.2 5.5 5 6.7 5.8 5.6 6 5.5 4.3 6.2 6.7 6.1 6.2 4.9 7 5.4 6.6 4.7 6.7 6.8 5.9 6.7 7.4 5.8 5.7 6.5 5.2 5.1 5.8 4.9 6.4 6.9 7.1 6.9 5.2 6.6 6.4 6.5 7 6.2 5.4 6.5 6.4 66 6.3 6.8 6.1 6.9 5.2 6.5 5.5 5 5.2 6 5.7 6.3 5 6.2 7.4 6.8 6.6 6.1 6.7 6.8 7.1 6.7 5.2 6 4.6 6.3 Table for reference Control Chart Factors for Xbar and R Charts n Sample size. Factor, Range, A2 D4 1.88 3.268 1.023 2.574 0.729 2.282 0.577 2.115 0.483 2.004 0 0.419 1.924 0.076 0.373 1.864 0.136 2 3 4 5 6 Mean Upper Lower Range, D3 0 7 8 0 0 0 The pH values of a liquid are measured three times per day during a period of 24 days. Draw appropriate control charts and interpret the result. Subgroup Obs₁ Obs2 Obs3 5.8 6.4 1 2 3 4 5 6 7 8 9 10 11 12 13. 14 15 16 17 18 19 20 21 22 23 24 6 5.2 5.5 5 6.7 5.8 5.6 6 5.5 4.3 6.2 6.7 6.1 6.2 4.9 7 5.4 6.6 4.7 6.7 6.8 5.9 6.7 7.4 5.8 5.7 6.5 5.2 5.1 5.8 4.9 6.4 6.9 7.1 6.9 5.2 6.6 6.4 6.5 7 6.2 5.4 6.5 6.4 66 6.3 6.8 6.1 6.9 5.2 6.5 5.5 5 5.2 6 5.7 6.3 5 6.2 7.4 6.8 6.6 6.1 6.7 6.8 7.1 6.7 5.2 6 4.6 6.3 Table for reference Control Chart Factors for Xbar and R Charts n Sample size. Factor, Range, A2 D4 1.88 3.268 1.023 2.574 0.729 2.282 0.577 2.115 0.483 2.004 0 0.419 1.924 0.076 0.373 1.864 0.136 2 3 4 5 6 Mean Upper Lower Range, D3 0 7 8 0 0 0
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Linear Algebra And Its Applications
ISBN: 9781292351216
6th Global Edition
Authors: David Lay, Steven Lay, Judi McDonald
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