Given n=4n=4n=4 data points (1,3),(2,5),(3,7),(4,9)(1,3),(2,5),(3,7),(4,9)(1,3),(2,5),(3,7),(4,9), find the OLS regression line y^=β^0+β^1x\hat{y}=\hat{\beta}_0+\hat{\beta}_1 xy^=β^0+β^1x.
y^=1+2x\hat{y} = 1 + 2xy^=1+2x
y^=2+2x\hat{y} = 2 + 2xy^=2+2x
y^=1+3x\hat{y} = 1 + 3xy^=1+3x
y^=3+x\hat{y} = 3 + xy^=3+x