CONSTRUCTION OF THIRTY NINE POINTS SECOND ORDER ROTATABLE DESIGN IN THREE DIMENSIONS WITH A PRACTICAL HYPOTHETICAL EXAMPLE

Abstract

In this study, a new thirty nine points second order rotatable design in three dimensions is constructed using trigonometric functions and a practical hypothetical example is given by converting coded level s to natural levels. This design permits a response surface to be fitted easily and provides spherical information cont ours besides the economic use of scarce resources in relevant production processes.