2. The regression model is y = 0 + 1 x + . There are six observations. The summary statistics are: y i = 8.5 , x i = 6 , x i 2 = 16 , x i y i = 15.5 , y i 2 = 17.25 (i) Calculate ^ 1 . (ii) Calculate ^ 0 . (iii) Write estimated simple regression line..