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Title

Covariance Structures of Linear Models

Keywords

equality of regression parametric estimates, equality of the covariances,Randomized Blocks design,full rank generalized inverse,generalized inverse,Moore-Penrose inverse

Description

Young, Scariano, and Hallum (2005) study two univariate linear regression models, and establish a certain condition for the variances estimates to be equal; however, the condition is in error. They then apply this incorrect condition to some unknown completely randomized design model. The present paper records the correct condition for the equality of the context variances, and points out that this condition cannot be applied to experimental design models.

Date

2011-10-03

Identifier


Source

Pakistan Journal of Statistics and Operation Research; Vol 7. No. 2-Sp, Oct 2011



Print ISSN: 1816-2711 | Electronic ISSN: 2220-5810