Angelika Aimee Pilkington

AN EXACT TEST OF TWO SECTION ERROR VARIANCE HETEROSCEDASTICITY IN MIXED TWO-WAY LAYOUT INCORPORATING COVARIATES EXPERIMENTAL DESIGNS APPLICABLE TO AGRICULTURAL VARIETY FROST TRIALS

Two-way layouts with covariates are common in grain industry research, where assessing extra error variance structure is essential when estimating fixed effects. This thesis illustrates an exact F test for heteroscedasticity in such settings, using data from Western Australian fr...