In the Saintemarie ED case, we saw that reducing the processing time by just a little bit resulted in substantial savings in the average waiting time in the ED. This happened because:
I. Statistical economies of scale.
III. The utilization of the ED was close to 1, and the impact of utilization on waiting time is nonlinear.
d) I and II
e) I and III
f) II and III
g) All of the above
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