needed step by step solution 3 The yield of a chemical proce

needed step by step solution

3. The yield of a chemical process is related to the concentration of the reactant and temperature. An experiment has been conducted with the following results. Yield Concentration Temperature 81 89 83 91 1.00 1.00 2.00 2.00 150 180 150 180 Suppose we write our model in terms of coded variable. X1 = Conc - 1.5/0.5, x2 = Temp - 165/15 Fit a linear regression model using coded variable relating yield to concentration and temperature in the form of y = Beta0 + beta1x1 + beta2x2

Solution

The above table shows the coded values for x1 and x2

Now use the coded x1 and x2 to predict y value

y = 86+x1+4x2

Yield	concent.	Coded con	Temp	Code tem
81	1	-1	150	-1
89	1	-1	180	1
83	2	1	150	-1
91	2	1	180	1