One of the Important Factors Determining a Car's Fuel Efficiency

question 6

Multiple Choice

One of the important factors determining a car's fuel efficiency is its weight.This relationship is examined for 11 cars,and the association is shown in the scatterplot below.
If a linear model is considered,the regression analysis is as follows:
Dependent variable: MPG
R-squared = 84.7%
VARIABLE COEFFICIENT
Intercept 47.1181
Weight -7.34614
The residuals plot is:
Based upon the residuals plot,do you think that this linear model is appropriate?

• A)Yes,residuals show no pattern.
• B)Yes,residuals show a linear pattern.
• C)No,residuals show a curved pattern.
• D)No,residuals show no pattern.
• E)Yes,residuals show a curved pattern.

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