An article in Quality & Safety in Health Care
Chapter 15, Problem 18E(choose chapter or problem)
An article in Quality & Safety in Health Care [“Statistical Process Control as a Tool for Research and Healthcare Improvement,” (2003)Vol. 12, pp. 458–464] con-sidered a number of control charts in healthcare. The following approximate data were used to construct \(\bar{X}-\mathrm{S}\) charts for the turn around time (TAT) for complete blood counts (in minutes). The subgroup size is \(n=3\) per shift, and the mean standard deviation is 21. Construct the \(\bar{X}\) chart and comment on the control of the process. If necessary, assume that assignable causes can be found, eliminate suspect points, and revise the control limits.
Equation Transcription:
Text Transcription:
\bar X-S
n=3
\barX
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