11.35 Suppose that you fit the model Y = Bo+ Bx + B2x2 + Baxx2 + B4x + Bx + & to n = 30 data points and that SSE = 0.37 and R2 = 0.89 a Do the values of SSE and R suggest that the model provides a good fit to the data? Explain. b Is the model of any use in predicting y? Test the null hypothesis that E(Y) Bo, that is, Ho: B =2 == 3 = 0 B2 against the alternative hypothesis Ha: At least one of the parameters B1, B2, B5 is nonzero. Use a = 0.05.