The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) below. Commute Time (minutes), x Well-Being Index Score, y 50 84 105 5 20 25 35 69.3 68.2 67.7 67.4 66.8 66.1 64.7 (a) Find the least-squares regression line treating the commute time, x, as the explanatory variable and the index score, y, as the response variable. 00-6 (Round to three decimal places as needed.)