Determine the upper and lower control limits of the rchart

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Reference no: EM13758404

35 samples of size 7 each were taken from a fertilizer bag filling machine. The results were: Overall mean = 54.75 lbs; average range = 1.78 lb. a) determine the upper and lower control limits of the x-chart, where ?=3. b) Determine the upper and lower control limits of the Rchart where ?=3

Reference no: EM13758404

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