KINDLY MAKE THE ANSWER NEAT AND CLEAN

5. [6 marks each] Consider the simple linear regression model as discussed in class where the observations are modeled Y ~N(B; + BXxi, 02), i =1, ..., n. Consider the least squares estimators, Bo and B1, for the respective coefficients By and BY. (a) Show that 02 Var( B1) = (b) Show that Var(Bo) = 02 - + n EL(Ti -X)2