$[\backslash$rho $=$ ; P$\_0=$ ; L$\_$s$=$ customer$($s$)$; L$\_$q$=$ customer$($s$)$; W$\_$s$=$ hours; W$\_$q$=$ hours $]$

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

$[\backslash$rho $=$; P$\_0=$; L$\_$s$=$ customer$($s$)$; L$\_$q$=$ customer$($s$)$; W$\_$s$=$ hours; W$\_$q$=$ hours; $]$