Status ? Expialli. 2. In the United States, homes are measured by the total number of square feet of area of all floors of the house. Data from www.census.gov show how the median size of a home in the Northeast changed from 1973 through 2010. Here are the regression results and a plot of the residuals against predicted values. Dependent variable is: NEsqft No Selector R squared =94.8% R squared (adjusted) = 94.6% S = 72.07 with 38 - 2 = 36 degrees of freedom Sum of Source Squares df Mcan Square F-ratio Regression 3403782 3403782 655 O Residual 186979 36 5193.87 s.e. of Variable Coefficient Coeff t-ratio prob Constant -52410.9 2123 -24.7 0.0001 Year 27.2927 1.066 25.6 $ 0.0001 150 + 100 50 + 0 Residuals(N/Y) -50 - -100 -150 -200- 1600 1800 2000 2200 2400 Predicted(N/Y) a) Write the equation of the regression line. b) Do you think this linear model is appropriate? Explain. c What does this residual plot tell you about estimates based on this model? d) According to this model how has median home size changed per decade? e) Estimate the actual median home size in 2009