SCENARIO 15-5 What Are the Factors That Determine the Acceleration Time (In

question 2

Short Answer

SCENARIO 15-5
What are the factors that determine the acceleration time (in sec. )from 0 to 60 miles per hour of a car? Data on the following variables for 171 different vehicle models were collected:
Accel Time: Acceleration time in sec.
Cargo Vol: Cargo volume in cu.ft.
HP: Horsepower
MPG: Miles per gallon
SUV: 1 if the vehicle model is an SUV with Coupe as the base when SUV and Sedan are both 0
Sedan: 1 if the vehicle model is a sedan with Coupe as the base when SUV and Sedan are both 0
The coefficient of multiple determination ( R ²_j)for the regression model using each of the 5 variables X _j as the dependent variable and all other X variables as independent variables are,respectively,
0.7461,0.5676,0.6764,0.8582,0.6632.
-Referring to Scenario 15-5,what is the value of the variance inflationary factor of Cargo Vol?

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Definitions:

Normally Distributed

The distribution is noted for its symmetry about the mean, with a higher concentration of data points near the mean and fewer occurrences as the distance from the mean increases.

Explanatory Variables

Variables in a statistical model that are used to explain variation in the response variable; also known as independent variables.

Response Variable

The variable in a study that responds or is presumed to change due to the influence of another variable.

Weakest Correlation

The situation where two variables have the smallest degree of linear relationship between them, often near zero.