Consider the roller coasters (with the outlier removed) described in Exercise 30 again. The regression analysis gives the model Duration = 85.83 + 0.397 Drop.
a) Explain what the slope of the line says about how long a roller coaster ride may last and the height of the coaster.
b) A new roller coaster advertises an initial drop of 200 feet. How long would you predict the rides last?
c) Another coaster with a 150-foot initial drop advertises a 2 and a half-minute ride. Is this longer or shorter than you'd expect? By how much? What's that called?