We consider a class of optimality criteria and show that each crite- rion has its unique and equivalent dual within the class. This property can be used to find a variety of optimal designs, including a class of compound optimal designs and their relationships. As an example, we show that one...

We consider a class of optimality criteria and show that each crite- rion has its unique and equivalent dual within the class. This property can be used to find a variety of optimal designs, including a class of compound optimal designs and their relationships. As an example, we show that one...

Logistic regressions are commonly used to assess for fair lending across groups of loan applicants. This paper considers estimation of the disparate treatment parameter when the sample is stratified jointly by loan outcome and race covariate. We use Monte Carlo analysis to investigate the...

Hybrid designs H310 and H311B are compared with Box--Behnken (BBD) and central composite (CCD) designs for estimation and testing in second-order models having k = 3 regressor variables. For linear coefficients these designs are ordered in efficiency as CCD [succeeds] BBD [succeeds] H311B...