The caller times at a customer service center has an exponential distribution with an average of 16 seconds. Find the probability that a randomly selected call time will be less than 60 seconds?
The caller times at a customer service center has an exponential distribution with an average of...
The commute time for people in a city has an exponential distribution with an average of 0.5 hours. What is the probability that a randomly selected person in this city will have a commute time between 0.4 and 0.8 hours?
A call-in customer service center knows they get on average 18 calls per hour on weekday mornings. What is the probability they get 16 calls in a half hour?
The Customer Service Center in a large New York department store has determined that the amount of time spent with a customer about a complaint is normally distributed, with a mean of 8.7 minutes and a standard deviation of 2.0 minutes. What is the probability that for a randomly chosen customer with a complaint, the amount of time spent resolving the complaint will be as follows. (Round your answers to four decimal places.) (a) less than 10 minutes (b) longer...
The Customer Service Center in a large New York department store has determined that the amount of time spent with a customer about a complaint is normally distributed, with a mean of 9.1 minutes and a standard deviation of 2.8 minutes. What is the probability that for a randomly chosen customer with a complaint, the amount of time spent resolving the complaint will be as follows. (Round your answers to four decimal places.) (a) less than 10 minutes (b) longer...
The Customer Service Center in a large New York department store has determined that the amount of time spent with a customer about a complaint is normally distributed, with a mean of 8.7 minutes and a standard deviation of 3.0 minutes. What is the probability that for a randomly chosen customer with a complaint, the amount of time spent resolving the complaint will be as follows. (Round your answers to four decimal places.) (a) less than 10 minutes (b) longer...
A grocery clerk can serve 20 customers per hour on average and the service time follows an exponential distribution. What is the probability that a customer's service time is less than 2 minutes?
The Customer Service Center in a large New York department store has determined that the amount of time spent with a customer about a complaint is normally distributed, with a mean of 9.1 minutes and a standard deviation of 2.7 minutes. What is the probability that for a randomly chosen customer with a complaint, the amount of time spent resolving the complaint will be as follows. (Round your answers to four decimal places.) (a) less than 10 minutes Incorrect: Your...
4. The emergency telephone (911) center in a large city receives an average of 210 calls per hour during a typical day. On average, each call requires about 121 seconds fora dispatcher to receive the emergency call, determine the nature and location of the problem, and send the required individuals (police, firefighters, or ambulance) to the scene. The center is currently staffed by 7 dispatchers a shift but must have an adequate number of dispatchers on duty and it has...
3. At the Direct cable system claim center, the reported service request usually follows Poisson distribution with rate of 5 /day (Assume 1 day is 24 hours unit). (a) Find the probability that there will be fewer than 3 requests on a given day [5] (b) Find the probability that the time until the next request is less than two hours. [Hint: The inter-arrival time of request is distributed as Exponential distribution] 157
The service times at a teller window in a bank were found to follow an exponential distribution with mean of 3.2 minutes. A customer arrives at 4:00pm. a. Find the probability that he will still be there at 4:02 pm b. Find the probability that he will still be there at 4:04 pm given that he was there at 4:02