An Unhealthy Commute

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).