REGRESSION IN UNBALANCED RANDOMIZED BLOCK EXPERIMENTS.

Martha Maria MISCHAN1

Sheila Zambello de PINHO[1]

§    ABSTRACT: For unbalanced randomized block experiments, with treatments as levels of a quantitative factor, we determine the contrasts coefficients for the different partitions of the treatments sum of squares in sums of squares of polynomial regression. We determine the coefficients by resolving a system of equations formed by the contrasts estimability and orthogonality conditions, and the regression conditions.

§    KEYWORDS: Unbalanced experiments; sums of squares partition; polynomial effects of treatments ; one degree of freedom contrasts.

 

 



[1] Departamento de Bioestatística - UNESP - Campus Botucatu - 18618-000 - Botucatu - SP - Brasil