Question: An x chart with three - sigma limits has parameters as follows: UCL = 1 0 4 , Center line = 1 0 0 ,

An
x
chart with three-sigma limits has parameters as follows: UCL=104, Center line =100,LCL=96 and n=5. Suppose the process quality characteristic being controlled is normally distributed with a true mean of 98 and a standard deviation of 8.

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