Kolmogorov–Smirnov Test Statistic and Critical Values for the Erlang-3 and Erlang-4 Distributions

Following a procedure applied to the Erlang-2 distribution in a recent paper, an adjusted Kolmogorov–Smirnov statistic and critical values are developed for the Erlang-3 and -4 cases using data from Monte Carlo simulations. The test statistic produced features of compactness and ease of implementation. It is quite accurate for sample sizes as low as ten.