TABLE 17-9 What Are the Factors That Determine the Acceleration Time (In

question 278

True/False

TABLE 17-9
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. 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 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.
-True or False: Referring to Table 17-9,there is enough evidence to conclude that Cargo Vol makes a significant contribution to the regression model in the presence of the other independent variables at a 5% level of significance.

---

Definitions:

Delta Waves

Slow and high amplitude brainwaves that are typically associated with deep sleep and aid in the body's healing process and rejuvenation.

Alpha Waves

A type of brainwave that is associated with relaxed, calm, and wakeful states, typically with closed eyes.

Theta Waves

A type of brainwave primarily observed in sleep and meditation, associated with relaxation, creativity, and reduced consciousness.

Electrooculograph

A technique for measuring the corneo-retinal standing potential between the front and the back of the human eye, used to track eye movements.