λ= μ= b. Calculate P0 c. How many callers, on average, are waiting to place an order under the current operating system?
Ashley’s department store in Kansas City maintains a successful catalog sales department in which four clerk takes orders by telephone. If four clerks are occupied on four-lines, incoming phone calls to the catalog department are answered automatically by a recording machine and asked to wait. As soon as the clerk is free, the party that has waited for the longest is transferred and answered first. Calls come in an average of 3 minutes. The clerk is capable of taking an order in an average of 10 minutes. Calls tend to follow a Poisson distribution, and service times tend to be exponential.
a. λ= μ=
b. Calculate P0
c. How many callers, on average, are waiting to place an order under the current operating system?
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