(Solved): Consider a train that runs from Seattle to Los Angeles. The mean travel time from one stop to the ne ...

Consider a train that runs from Seattle to Los Angeles. The mean travel time from one stop to the next is 130 minutes, with a standard deviation of 114 minutes. The mean distance traveled fr stop to the next is 107 miles with a standard deviation of 100 miles. The correlation between travel time and distance is 0.631 . (a) Write the equation of the regression line for predicting travel time. (Let

represent travel time in minutes and let

represent distance traveled in miles.)

(b) Interpret the slope in this context. For each mile increase in distance traveled, we would expect travel time to increase on average by

minutes. Interpret the intercept in this context. When the distance traveled is 0 miles, the travel time is expected to be on average

minutes.