The file P08_07.xlsx contains a random sample of 200 service times during the busiest hour of the
Question:
a. The mean service time
b. The standard deviation of service times
c. The proportion of service times longer than 90 seconds
d. The proportion of service times shorter than 60 seconds
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Related Book For
Data Analysis And Decision Making
ISBN: 415
4th Edition
Authors: Christian Albright, Wayne Winston, Christopher Zappe
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