Determine the Average Run Length (ARL) of a x-bar chart with limits at 3 sigma where the process is incontrol and the rule to stop the process is to have 1 point beyond the three-sigma limits (Western Electric Rule #1)
Determine the Average Run Length (ARL) of a x-bar chart with limits where the process has shifted one standard deviation in one direction
Determine the Average Run Length (ARL) of a x-bar chart with limits at 1 sigma where the process is incontrol and the rule to stop the process is to have at least 4 out of 5 points beyond the one-sigma limits, on either side (Western Electric Rule #3)"
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