Concept explainers
(a)
Interpretation: It is to be determined that the call center access time is in statistical control.
Concept Introduction:
The X-chart is used to determine the central tendency of the process. By using the X-chart it easy to determine the abnormalities of the process along with the errors which are responsible for these errors.
(b)
Interpretation: The capability of the process is to be determined when three-sigma performance is desired.
Concept Introduction:
The X-chart is used to determine the central tendency of the process. By using the X-chart it easy to determine the abnormalities of the process along with the errors which are responsible for these errors.
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