ABSTRACT

Estimates 'Y, jl, and &3 can be calculated as the simultaneous solution of the preceding equations. However, because of computational problems involved in evaluating the third equation of (7. I. 21), it is suggested that we employ the procedure previously outlined for the solution of censored sample estimating equations. We select approximations to a 3 which are then substituted into the first two equations of (7 .I. 21). These equations are then solved for conditional estimates (approximations) ')'(a3) and f.L(a3). Several sets of approximations are calculated in this manner and substituted directly into In Lin search of a maximum. A plot of In L as a function of a 3 will be helpful in determining the required estimate &3 . The modified maximum likelihood estimates are not considered to be feasible for truncated samples.