The performance analysts at Manufacturers Handover Fist have successfully modeled a computer subsystem using the D/M/1 queueing system with $E[\tau]=0.02$ seconds and $W_s=0.016$ seconds.
(a) For the steady state system, calculate $W_q, L_q, \sigma_q, L, W, \pi_w[90]$, $W[0.1], W_q[0.08]$, and $\pi_q[90]$.
(b) Make the calculations of part (a), assuming that $E[\tau]$ has decreased to $4 / 245$ seconds.