Question: The output of a process is normally distributed with a mean of 100 and a standard deviation of 1. Build, following the Shewhart's model, a


The output of a process is normally distributed with a mean of 100 and a standard deviation of 1.

Build, following the Shewhart's model, a complete control chart system (both mean and dispersion must be controlled), with which you could identify a shift of

+0.4 in 45 minutes on average. Comment in details the procedure.

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