Arrival rate 9. Service rate low 4. Service rate high 8. Total; Lost; Usage 93 9 0.555174 104 11 0.607974 84 6 0.504934 108 4 0.624488 115 8 0.687245 104 9 0.620964 111 9 0.668258 118 5 0.698703 110 9 0.66411 99 2 0.594685