Travellers flying out of an airport first pass through security. Security superv
ID: 448044 • Letter: T
Question
Travellers flying out of an airport first pass through security. Security supervisors need to decide how to place stanchions for the queue. Assume that travellers line up in a single line and will be directed to the first available security officer once they get to the front of the line (there are four security officers available to serve customers, at an average rate of 45 seconds per customer. If an average of 308 travellers per hour arrive (assume Poisson arrival rate), how long will the queue be, on average?
Between 30 and 40 travellers
More than 40 travellers
Between 10 and 20 travellers
Fewer than 10 travellers
Between 20 and 30 travellers
a.Between 30 and 40 travellers
b.More than 40 travellers
c.Between 10 and 20 travellers
d.Fewer than 10 travellers
e.Between 20 and 30 travellers
Explanation / Answer
Between 20 and 30 travellers
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