Recent content by afsechem

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    Surface Response Metodolgy: What model should i use for a 2 factor design

    I made a SRM for a chemistry experiment. The factors analyzed were 2 an i had 5 responses. For the model can i use a cubic model or should i use a cuadratic model due to the number or factors analyzed? For some responses the best fit is a cuadratic and for some other is the cubic. Is correct...