11.10. The hexagon design in Table P11.4 is used in an experiment that has the objective of fitting a second-order model:

(a) Fit the second-order model.

(b) Perform the canonical analysis. What type of surface has been found?

(c) What operating conditions on x1 and x2 lead to the stationary point?

(d) Where would you run this process if the objective is to obtain a response that is as close to 65 as possible?

Transcribed Image Text:

y 1 0 68 0.5 V0.75 74 -0.5 0.75 65 -1 0 60 -0.5 -V0.75 63 0.5 -0.75 70 0 0 58 0 0 60 0 0 57 0 0 55 0 0 69