### An unhealthy commute | Mathematics homework help

**An Unhealthy Commute **Use the results of Problem 11 from Section 14.1 to answer the following questions:

**(a) **Predict the mean well-being index composite score of all individuals whose commute time is 20 minutes.

**(b) **Construct a 90% confidence interval for the mean wellbeing index composite score of all individuals whose commute time is 20 minutes.

**(c) **Predict the well-being index composite score of Jane, whose commute time is 20 minutes.

**(d) **Construct a 90% prediction interval for the well-being index composite score of Jane, whose commute time is 20 minutes.

**(e) **Explain the difference between the predictions made in parts (a) and (c).