Average number of shoppers waiting at checkout is 7.
Average:
Average means the ratio of the sum of all given observations to the total number of observations.
Given,
Little’s law can be applied to any part of the store, such as a particular department or the checkout lines.
The store owner determines that, during business hours, approximately 84 shoppers per hour make a purchase and each of these shoppers spend an average of 5 minutes in the checkout line.
Let,
r is shoppers/minute
T is average time spend by shoppers in minutes
N average number of shoppers.
So, Here, shoppers/hour =84.
Hence, the value of r
r = 84 / 60
And the value of
T = 5
So, the average number of shoppers waiting at checkout is calculated as,
N = r x T
N = (84/60) x 5
N = (84/12) x 1
N = 7
Therefore, the average number of shoppers waiting at checkout is 7.
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