A quality control engineer monitors the quality of a cylinder production line. He regularly selects a sample
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A quality control engineer monitors the quality of a cylinder production line. He regularly selects a sample of 5 units and measures the diameters. The specification requires the diameter to be 6 inches plus/minus 0.1 inch. The following is a record of his measurements. Is the production process in control? Please use X bar and R charts to make an assessment.
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Number of samples 5 Sample size 5 Data Mean Range Sample 1 ...View the full answer
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Related Book For 
John E Freunds Mathematical Statistics With Applications
ISBN: 9780134995373
8th Edition
Authors: Irwin Miller, Marylees Miller
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