Information about eight four-cylinder automobiles judged
Chapter 11, Problem 9E(choose chapter or problem)
Information about eight four-cylinder automobiles judged to be among the most fuel efficient in 2006 is given in the following table. Engine sizes are in total cylinder volume, measured in liters (L).
a Plot the data points on graph paper.
b Find the least-squares line for the data.
c Graph the least-squares line to see how well it fits the data.
d Use the least-squares line to estimate the mean horsepower rating for a fuel-efficient automobile with cylinder volume 1.9 L.
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