For the second house, with 2871 square feet at a price of 899 thousand dollars, find the predicted value and residual. Round these to the nearest dollar. At the a = 0.05 significance level, is the slope coefficient significantly different from zero? Why or why not? A real estate agent believes that in the Catalina Foothills, each additional square foot of house space should lead to a $400 increase in house price. Based on the regression output, would you support or reject this claim at the 95% level