5. Quality control charts do not need to be investigated when: (a) Four consecutive points appear one
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5. Quality control charts do not need to be investigated when:
(a) Four consecutive points appear one side of the centre line
(b) An apparent trend occurs in one direction
(c) Suspiciously average behaviour occurs
(d) Two consecutive points are near the control limits
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Related Book For
Production And Operations Management
ISBN: 9780071077927
1st Edition
Authors: McGraw-Hill Education India
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