Regarding the Prediction Expression
Hi members, I am conducting an RSM design on jmp 16 and I want to extract the prediction expression for the model. This is the prediction expression I got. The centre points for x1 and x2 are 25 and 10 respectively.I am trying to wonder why the variables are centred using the centre points for this type of model. (I thought it only applies to first-order models to account for curvature)When report...