Business, 28.01.2020 18:46 lexi7149

The management at ohio national bank does not want its customers to wait in line for service for too long. the manager of a branch of this bank estimated that the customers currently have to wait an average of 8 minutes for service. assume that the waiting times for all customers at this branch have a normal distribution with a mean of 8 minutes and a standard deviation of 2 minutes. a) find the probability that a randomly selected customer will have to wait for less than 3 minutes. b) what percentage of the customers have to wait for 10 to 13 minutes? c) what percentage of the customers have to wait for 6 to 12 minutes? d) is it possible that a customer may have to wait longer than 16 minutes for service? explain.

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