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A bank with branches located in a commercial district of a city and in a residential district has the business objective of developing an improved

A bank with branches located in a commercial district of a city and in a residential district has the business objective of developing an improved process for serving customers during the​ noon-to-1 P.M. lunch period. Management decides to first study the waiting time in the current process. The waiting time is defined as the time that elapses from when the customer enters the line until he or she reaches the teller window. Data are collected from a random sample of 15 customers at each branch. Complete​ (a) through​ (e) below.

The following is the data sample of the wait​ times, in​ minutes, from the commercial district branch.

4.38 5.37 3.09 5.27 4.65 2.71 3.28 3.42

Apr 21 2020 View more View Less

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