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TABLE 14-16
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 30 different vehicle models were collected:
Y (Accel Time) : Acceleration time in sec.
X1 (Engine Size) : c.c.
X2 (Sedan) : 1 if the vehicle model is a sedan and 0 otherwise
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 determinations
and
are 0.3301,and 0.0594,respectively.
The coefficient of determination for the regression model using each of the 2 independent variables as the dependent variable and the other independent variable as independent variables ( ) are,respectively 0.0077,and 0.0077.
-Referring to Table 14-16,what is the correct interpretation for the estimated coefficient for X1?
Body Temperature
The measure of the body's ability to generate and get rid of heat, indicating the balance of heat produced by metabolic activities and lost to the environment.
Basal Metabolic Rate (BMR)
The rate at which the body uses energy while at rest to maintain vital functions such as breathing and keeping warm.
Pregnancy
The period during which a fetus develops inside a woman's uterus, lasting about 40 weeks from the last menstrual period to childbirth.
Thyroid Hormone
A hormone produced by the thyroid gland, critical for regulating metabolism, energy generation, and growth and development.
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