Q. No. 4 From the following table giving the quantity demanded (Y), its price (X1) and Consumers income (X2) from 2010 to 2019, (a) Estimate regression equation (demand equation) of Yon X, and X2. (03) (b) Test at the 5% level of statistical significance of the slope parameters. (01) (c) Find the coefficient of determination (R2) (01) Years Y X1 X2 2010 72 $10 2000 2011 81 9 2100 2012 90 10 2210 2013 99 9 2305 2014 108 8 2407 2015 126 7 2500 2016 117 2610 2017 117 9 2698 2018 135 6 2801 2019 144 4 2905