Consider the following data for a dependent variable y and two Independent variables, 1 and $2 . 30 12 95 47 10 108 24 18 112 51 17 178 41 6 95 52 19 176 74 8 170 37 13 117 59 14 142 77 16 211 Round your all answers to two decimal places. Enter negative values as negative numbers, if necessary. a. Develop an estimated regression equation relating y to 71- 1 = 47.35 X + 1.9 Predict y if 21 = 45 y = 114.1 X b. Develop an estimated regression equation relating y to $2. y = 82.27 4.35 Predict y if T2 - 25 y = 147.56 c. Develop an estimated regression equation relating y to Z1 and Z2 y= -25.74+ 2.02 1 21 + 5.06 0 12 Predict y if 21 = 45 and 21 = 25, y = 120.68 X