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SOLVED: The following X and charts based on n = 4 have shown statistical control:X ChartUCL = 710 Center line = 700 LCL = 690UCL = √8.08 Center line = 7.979 LCL = 0Estimate the process parameters U and σ. If the specifications are at 705 ± 5 and the process output is normally distributed, estimate the fraction nonconforming (c) For the X chart; find the probability of a type I error, assuming σ is constant (d) Suppose the process mean shifts to 693 and the standard deviation simultaneously

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a fraction nonconforing control chart with 400 has the following parameters ucl 00809 center line 00500 lcl 00191 find the width of the control limits in standard deviation units what would 45856

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