Question: You want to define control limits, UCL and LCL, for a X-bar Chart to control the diameter of cylinder rails. You collected 30 samples

You want to define control limits, UCL and LCL, for a X-bar

You want to define control limits, UCL and LCL, for a X-bar Chart to control the diameter of cylinder rails. You collected 30 samples from the manufacturing line. Each sample is of size 8. Assume that X is 2.9 inches and R is 8.5 inches. Find UCL and LCL for this chart: LCL: UCL:

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