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In: Statistics and Probability

Waiting times​ (in minutes) of customers at a bank where all customers enter a single waiting...

Waiting times​ (in minutes) of customers at a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. Find the coefficient of variation for each of the two sets of​ data, then compare the variation. Bank A​ (single line): 6.6 nbsp 6.6 nbsp 6.7 nbsp 6.8 nbsp 7.0 nbsp 7.3 nbsp 7.5 nbsp 7.7 nbsp 7.7 nbsp 7.8

Bank B​ (individual lines): 4.4 nbsp 5.4 nbsp 5.7 nbsp 6.2 nbsp 6.8 nbsp 7.6 nbsp 7.8 nbsp 8.6 nbsp 9.2 nbsp 9.7

The coefficient of variation for the waiting times at Bank A is

b. find coefficient of variance for vaiting times in Bank B: %

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