Consider the following data for a dependent variable y and two independent variables, 1 and 12. Click on the datafile logo to reference the data. DATA file 2 1 y 12 94 108 112 178 94 19 175 74 170 36 12 117 59 13 142 76 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 1. Predict y if a1 = 45 U = b. Develop an estimated regression equation relating y to 2 Predict y if 2:2 = 15