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Asked by ColonelTeamQuetzal3 on coursehero.com

__ ____(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.__

y= x+ ()

(Round to three decimal places as needed.)Part 2****

__(b) ____Interpret the slope and y-intercept, if appropriate. Interpret the slope. Select the correct choice below and, if necessary__

**A.** For a commute time of zero minutes, the index score is predicted to be enter your response here.(Round to three decimal places asneeded.)

**B.**For every unit increase in commute time, the index score

falls by ___________ on average. (Round to three decimal places as needed.

**C.**For every unit increase in index score, the commute time

falls by enter your response here,

on average.(Round to three decimal places as needed.)

**D.**For an index score of zero, the commute time is predicted to be

enter your response here

minutes.(Round to three decimal places as needed.)

**E.**It is not appropriate to interpret the slope.

__(Part 3)Interpret the y-intercept. Select the correct choice below and, if necessary, fill in the answer__

**A.**For a commute time of zero minutes, the index score is predicted to be_______(Round to three decimal places as needed.)

**B.**For every unit increase in commute time, the index score falls by

enter your response here, on average. (Round to three decimal places as needed.)

**C.**For an index score of zero, the commute time is predicted to be

enter your response here minutes.

(Round to three decimal places as needed.)

**D.**For every unit increase in index score, the commute time

falls by enter your response here, on average.

(Round to three decimal places as needed.)

**E. **It is not appropriate to interpret the y-intercept because a commute time of zero minutes does not make sense and the value of zero minutes is much smaller than those observed in the data set.

Part 4

__(c) ____Predict the well-being index of a person whose commute time is__

__30 minutes.The predicted index score is ______?__

(Round to one decimal place as needed.)

Part 5

__(d) ____Suppose Barbara has a 15-minute commute and scores on the survey. Is Barbara more "well-off" than the typical individual who has a commute? Select the correct choice below and fill in the answer (Round to one decimal place as needed.)__

**A.**No, Barbara is less well-off because the typical individual who has a 15-minute commute scores enter your response here.

**B. **Yes, Barbara is more well-off because the typical individual who has a 15-minute commute scores enter your response here

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Answered by dannicasarita on coursehero.com

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