The data below were collected by a chemical engineer. Y is filtration time, x_1 is temperature, and x_2 is pressure. Fit a second order model. What operating conditions would you recommend if the objective is to minimize the filtration time

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The data below were collected by a chemical engineer. Y is filtration time, x_1 is temperature, and x_2 is pressure. Fit a second order model. What operating conditions would you recommend if the objective is to minimize the filtration time?

 

x_1 x_2 y
-1 -1 54
-1 1 45
1 -1 32
1 1 47
-1.414213562 0 50
1.414213562 0 53
0 -1.414213562 47
0 1.414213562 51
0 0 41
0 0 39
0 0 44
0 0 42
0 0 40
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