Th e data in the file UsedHondaCivics come from a sample of used Honda Civics listed for
Question:
Th e data in the file UsedHondaCivics come from a sample of used Honda Civics listed for sale online in July 2006. Th e variables recorded are age (calculated as 2006 minus year of manufacture) and price.
a. Identify the observational units.
b. Produce a scatterplot of price vs. age. Describe the association revealed in the graph.
c. Determine the least squares line for predicting price from age and produce a scatterplot with the least squares line superimposed.
d. Report and interpret the value of the slope coeffi cient.
e. What percentage of the variability in car prices is explained by knowing the car’s age?
Step by Step Answer:
Introduction To Statistical Investigations
ISBN: 9781118172148
1st Edition
Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy