Multiple Choice
When we examine and s charts,what is the best strategy to use?
A) Start with the chart and only examine the s chart if a point is out of control.
B) Start with the s chart and ignore the chart unless the s chart is in control or until any special causes for lack of control in the s chart have been found and removed.
C) Examine both simultaneously and only declare a point out of control if it is outside the control limits on both charts.
D) Examine both simultaneously and only declare a point out of control if it is outside the control limits of the chart but within the control limits of the s chart.
Correct Answer:

Verified
Correct Answer:
Verified
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