Given are the data for two variables, $ and y. Do not round your intermediate calculations. 6 11 15 18 20 yi 6 8 12 20 30 a. Develop an estimated regression equation for these data by computing b1 and by (to 3 decimals). Enter negative values as negative numbers. b1 1.587 by -7.022 y = -7.022 + 1.587 b. Compute the residuals (to 2 decimals). Enter negative values as negative numbers. 3.49 -2.44 0 -4.79 -1.55 5.28 0d. Compute the standardized residuals. Enter negative values as negative numbers. standardized residual -.8284 (to 4 decimal places) .5773 (to 4 decimal places) 1.1336 (to 4 decimal places) 4 .3668 (to 4 decimal places) -1.249 (to 4 decimal places)