The data below represent commute times(inminutes) and scores on awell-beingsurvey. Complete parts(a)through(d)below.

(a)Find theleast-squaresregression line treating the commutetime,x, as the explanatory variable and the indexscore,y, as the response variable.

y= ____x + ( __ )

Round to 3 decimal places as needed

Commute time ( minutes) x. 5, 15, 30, 40, 50, 84, 105

well being index scroe, Y. 69.1, 67.9, 66.4, 65.7, 65.0, 63.2, 61.0