What is the utilization rate of the booth workers

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During busy times, 60 potential customers per hour arrive at the booth (assume a Poisson distribution). A booth worker takes 3.75 minutes, on average, to meet the information needs of a potential customer (assume an exponential distribution). How many booth workers are required for the average potential customer to spend no more than 5 minutes waiting and being served? How many potential customers are waiting to be served, on average? What is the utilization rate of the booth workers? I understand the formula for waiting time is W=Wq+1/mu Wq=Lq/mu 5=Wq+1/3.75 5-.267=Wq Wq=4.733 for Wq=Lq/mu(mu-lamda).-the mu*mu-lambda would be a negative number which is confusing. I have spent 10 hours watching videos and taking notes and I have no idea how to approach this! Please help!

Reference no: EM132783652

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