4Seemingly Unrelated Simple Linear Models
In this chapter, we consider an important class of models, namely, the seemingly unrelated simple linear models, belonging to the class of linear hypothesis, useful in the analysis of bioassay data, shelf‐life determination of pharmaceutical products, and profitability analysis of factory products in terms of costs and outputs, among other applications. In this model, as in the analysis of variance (ANOVA) model, 
independent bivariate samples 
are considered such that 
for each pair 
with fixed 
.
The parameters 
and 
are the intercept and slope vectors of the 
‐lines, respectively, and is the common known variance. In this model, it is common to test ...
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