The following is the quadratic regression equation for a sample of n=25 :Yi =5+3X +1.5X2 (1) predict Y for X1​=2. (Keep integer) (2) Suppose that the computed t STAT test statistic for the quadratic regression coefficient is 1.95. At the0.05level of significance, is there evidence that the quadratic model is better than the linear model? (Put "Y" for "Yes" or "N" for "N")