SELECTING ALL TREATMENTS BETTERS TWA

In this paper subset selection procedures for selecting all treat-ment populations with means larger than a control population are pro-posed. The treatments and control are assumed to have a multivariate normal distribution. Various covariance structures are considered. All of the proposed procedures are easily implemented using existing tables of the multivariate normal and multivariate t distributions. Some other procedures which have been proposed require extensive and unevailable tables for their implementation