Consider an estimated linear regression model with a response Y and 5 predictors X1, X2, X3, X4, X5 based on home sales in the city. For a random sample of 130 homes sold recently, the following estimates are obtained using Excel. Coefficients Standard Error Intercept 9287.3037 20264.207 X1 66.061227 8.9264107 X2 -2963.8816 7802.7407 X3 23764.209 9667.0609 X4 8238.1366 9425.7136 X5 -288.82324 153.24599 Find the lower limit of the change in the mean response for a unit change in X3 with 95% confidence coefficient, assuming that the other predictors remain unchanged over the period