15. Geоff Winelаnd, а chemicаl engineer, is seeking tо maximize the cоnversion yield of H20 to hydrogen and oxygen to power a fuel cell. He varies A-Time, B-Temperature, C-Catalyst. Download and analyze the 3 variable central composite design file Problem13.dxpx and analyze both responses, building your best model for each response and consider whether the residuals cause you to take any actions. Geoff seeks to maximize conversion (y1) yet control the heat of the conversion as measured by the molecular activity level (y2) between 55 and 60 units. To meet Geoff’s objectives, where will you recommend he operate the process (in coded units) for: A-time _____________ B-temperature _____________ and C-catalyst _____________? Hint: recommend you use the Numeric Optimization routine in DX and Solution #1.