For the data shown in the B+B+ and test for lack of fit. following table, fit the model Display the results as in Table 2.9. Does a quadratic model offer an improvement over the linear model? How do you justify this result in view of the results of the lack-of-fil test? Data for Exercise 2.28 10 10 20 33 33 x64 11 17 19 40 40 40 47 50 19 21 23 2017