A note on second order slope rotatable designs over all directions

G.V.S.R. Anjaneyulu Department of Statistics, Nagarjuna University, Guntur, Andhra Pradesh, 522 510, IndiaNagarjuna Nagar

D.N. Varma Department of Statistics, Nagarjuna University, Guntur, Andhra Pradesh, 522 510, IndiaNagarjuna Nagar

V.L. Narasimham Department of Statistics, Nagarjuna University, Guntur, Andhra Pradesh, 522 510, INDIANagarjuna Nagar

Abstract

Hader and Park (1978) introduced second order slope rotatability in axial directions. Park (1987) introduced second order slope rotatabilty over all directions. It is shown that these designs have the additional properly that the sum of the variances of estimates of slopes in all directions at any point is a function of the distance of the point from the design origin.

Keywords:

Second Order Slope Rotatable Designs (over all directions)

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A note on second order slope rotatable designs over all directions

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