Question: Starbucks coffee id considering opening a drivethrough window Management estimates that customer will arrive at a rate of 9 per hour, the employee staffing the

Starbucks coffee id considering opening a drivethrough window Management estimates that customer will arrive at a rate of 9 per hour, the employee staffing the window can serve customers at a rate on 1 every 4 minutes assume poisson arrival and exponential service

1- what is the service rate 2- how long would you expect it to wait in line and take your coffee 3- what percentage of time the employees are busy 4- what is the average numbers of cars in starbucks drive through window 5- what is the probability than an incoming car will find at least 3 cars waiting in line

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