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

question 42

Short Answer

TABLE 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 regression results using acceleration time as the dependent variable and the remaining variables as the independent variables are presented below.
ANOVA
The various residual plots are as shown below.
The coefficient of partial determination ( ) of each of the 5 predictors are, respectively, 0.0380, 0.4376, 0.0248, 0.0188, and 0.0312.
The coefficient of multiple determination for the regression model using each of the 5 variables 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 Table 15-5, ________ of the variation in Accel Time can be explained by the five independent variables.

---

Definitions:

Oculars

Refers to the eyepieces on optical devices, such as microscopes and telescopes, that magnify images for viewing.

Magnifying Lens

An optical device used to make small objects appear larger by focusing light through a convex lens.

Eyepieces

Optical elements of a microscope or telescope that the viewer looks into to magnify and examine the image of an object.

Light Source

A device or natural object (like the sun) that emits light, used in various contexts such as photography, surgery, or illumination.