K 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 5 20 30 69.3 68.2 67.5 35 50 84 105 67.3 66.7 66.0 64.5 + (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. 0+0-6 (Round to three decimal places as needed.)