Formulas: 9-5-4-7

Formula 1

Then, using the method described in 9.5.4.7.2, compute the maximum likelihood estimates of the shape and scale parameters for $\left\{X_{(i)}-\tau_{50}: i=1, \ldots, r\right\}$ where $r$ equals n for the uncensored data and $r$ represents the smallest integer greater than or equal to $4 n / 5$ for 20 percent censoring and $n / 2$ for 50 percent censoring.