Symmetrical Unequal Block Arrangements with two Unequal Block Sizes

Abstract

This paper deals with the analysis and constructions of Symmetrical Unequal Block (SUB) arrangements with two unequal block sizes. The analysis of these designs is obtained on the assumption of equal intrablock error variances for blocks of different sizes. Various methods of constructing these arrangements from known incomplete block designs are considered in this paper. The method of constructing SUB arrangements by the method of finite differences is also considered in this paper.