5
QuizMultiple Choice

Calculating the Least-Squares Regression Line

Question 5 • CA-Statistics and Probability A

A statistics student is studying if there is a relationship between the price of a used car and the number of miles it had been driven. She collects data for 20 cars of the same model with different mileage and determines each car’s price using a used car website. The analysis is given in the computer output.PredictorCoefSE Coeft-ratiopConstant24157.22164.12.9650.046Mileage-0.1810.0245.3770.000S = 3860.7R-Sq = 68.0%R-Sq(Adj) = 67.5%

Answer
A
$22,347.20
B
$23,917.20
C
$24,157.20
D
$25,967.20
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