The Lower and Upper Control Limits of An $\bar { x }$

question 113

Multiple Choice

The lower and upper control limits of an $\bar { x }$ control chart are usually set at:

• A) \(\pm\) one standard error from the centerline.
• B)\(\pm\) two standard errors from the centerline.
• C) \(\pm\) three standard errors from the centerline.
• D) None of these choices.

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