Posted: May 5th, 2022
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Quality Management and SPC (Chapter 17) Answer
(discussion question and experiential activities)
question 25 on page 541.
Hospital administrators wanted to understand and
better control the waiting time of patients in the
emergency department (ED). To do this, they constructed x
–-chart and R-charts by sampling the waiting times of the first five patients admitted to the
ED at the beginning of each shift (7 a.m., 3 p.m.,
and 11 p.m.). What do you think of this approach?
Will it provide the information the hospital administrators seek? How might the sampling process be
improved, and what would you recommend?
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