Breann can handle about seven customers per hour at her one-person comic book store. The customer arrival rate averages about five customers per hour. Breann is interested in knowing the operating characteristics of her single-channel, single-phase queuing system. Do not round intermediate calculations. Round your answers to three decimal places.

How would Breann's queuing system operating characteristics change if she added another cashier and increased her service rate to fourteen customers per hour? Do not round intermediate calculations. Round your answers to three decimal places.