MINITAB

(Response Surface Methodology) (RSM) (y)()y ) 1951Box Wilson

(yield), (viscosity)(molecular weight)3

(time)(temp)(yield), (y2)(y3)3MINITAB

Stat DOE Response Surface Analyze Response Surface Design

y=-1430.69+7.809time+13.272temp-0.055(time)2 -0.040(temp)2+0.010time*temp y2=-9030.740+13.393time+97.708temp -0.0275(time)2+0.268(temp)2-0.050time*temp y3=-627.800+4.067time+3.547temp

MINITAB

y1()>78.5() 62

Overlaid Contour PlotStat DOE Response Surface

Overlaid Contour Plot

Response Optimizer

(Desirability function)MINITAB(RSM)(di)(D)

Pi(importance) di

(Desirability function)diResponse optimizer setupweightdii

(Desirability function)

time=86,temp=182,D=0.797