In Quality Engineering (Vol. 28, No. 3, 2016), control charts were used to monitor the weight of
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In Quality Engineering (Vol. 28, No. 3, 2016), control charts were used to monitor the weight of frozen scallops packed at a marine products plant. During packing, the scallops are placed in plastic trays. The target total weight (scallops and plastic trays) is 2 kilograms. To monitor the packing process, the quality control department takes 5 samples of 5 plastic trays in the overnight shift every day and records the weight of each tray. An R-chart of weight for the first 40 samples is shown.
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a. Identify the rational subgroups used to construct the R-chart.
b. Is the process in control? If not, what do you recommend?
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a The rational subgroups used to construct the Rchart ar...View the full answer
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Related Book For 
Statistics For Business And Economics
ISBN: 9780134506593
13th Edition
Authors: James T. McClave, P. George Benson, Terry Sincich
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