Exercise 6.10 Test the model yi j =0+1xi+2x2 i +ei j for lack of fit using the

Exercise 6.10 Test the model yi j =β0+β1xi+β2x2 i +ei j for lack of fit using the data:

xi 1.00 2.00 0.00 −3.00 2.50 yi j 3.41 22.26 −1.74 79.47 37.96 2.12 14.91 1.32 80.04 44.23 6.26 23.41 −2.55 81.63 18.39