Determine the upper control limit

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Determine the upper control limit (UCL) and lower control limit (LCL) for an R-chart if twenty samples of the subgroup size 3 (n=3) were collected for a variable measurement and the mean of the smaple ranges equals 4.4 a. UCL = 9.3016, LCL = 0.3344 b. UCL = 1.4696, LCL = 0.0000 c. UCL = 11.3256, LCL = 0.0000 d. UCL = 8.8176, LCL = 0.0000

Reference no: EM13253563

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