Cans of soup are supposed to weigh exactly 16 oz. Inspectors want to develop process control charts. They take 8 samples and weigh 5 cans per sample. The std. deviation of all samples up to this point is 1.16 oz. Utilizing a 3 sigma approach what are the upper and lower control limits for an x-bar chart from the following data: Sample Range 15.2 4.6 0.7 16 1.6 17.1 13.2 0.4 0.5 0.9 16 15.9 4.8 A. 14.356, 10.4561 OB. 25.1091, 8.3462 O C. 16.9063, 13.7937 O D. 19.462, 13.701 OE. 30.8062,
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Expert Answer
For the 3 sigma approach,
UCL
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