ARMY MATERIEL TEST AND EVALUATION DIRECTORATE WHITE SANDS MISSILE RANGE NM
Five statistical tests are presented for verifying whether or not the failure rate is constant. Two tests are given to determine if a constant failure rate exists. The other three tests determine whether a constant, increasing, or decreasing failure rate exists. Tables needed for three of the tests are included. Also, a numerical example is presented in which three of the tests are used for comparing results.