Interpret the yintercept. Select the correct choice below and, if necessary, ll in the answer box to complete your choice. O A- For every unit increase in commute time, the index score falls by , on average. (Round to three decimal places as needed.) O B- For every unit increase in index score, the commute time falls by , on average. (Round to three decimal places as needed.) O C- For an index score of zero, the commute time is predicted to be minutes. (Round to three decimal places as needed.) O D- For a commute time of zero minutes, the index score is predicted to be (Round to three decimal places as needed.) O E. It Is not appropriate to interpret the yIntercept because a commute time of zero minutes does not make sense and the value of zero minutes is much smallerthan those observed in the data set. (c) Predict the wellbeing index of a person whose commute time is 30 minutes. The predicted index score is . (Round to one decimal place as needed.) (d) Suppose Barbara has a 15minute commute and scores 6?.0 on the survey. ls Barbara more "wellofl" than the typical individual who has a 15minute commute? Select the correct choice below and ll in the answer box to complete your choice. (Round to one decimal place as needed.) O A- Yes, Barbara is more welloft because the typical individual who has a 15minute commute scores O B- No, Barbara is less welloff because the typical individual who has a 15minute commute scores The data below represent commute times (in minutes) and scores on a wellbeing survey. Complete parts (a) through (d) below. CommuteTIme(minutes),x 5 20 25 4O 60 84 105 q Well-Beinglndex Score,y 69.1 67.5 66.3 65.3 64.2 63.1 60.9 (3) Find the leastsquares regression line treating the commute time, x, as the explanatory variable and the index score, y, as the response variable. x+ t J (Round to three decimal places as needed.) (b) Interpre the slope and yintercept. if appropriate. Interpret the slope. Select the correct choice below and, if necessary. ll in the answer box to complete your choice. O A- For a commute time of zero minutes, the index score is predicted to be (Round to three decimal places as needed.) O B- For every unit increase in index score, the commute time falls by , on average. (Round to three decimal places as needed.) O c- For every unit increase in commute time, the index score falls by , on average. (Round to three decimal places as needed.) O D- For an index score ofzero, the commute time is predicted to be minutes. (Round to three decimal places as needed.) O E. It is not appropriate to interpret the slope