SCENARIO 14-16 What Are the Factors That Determine the Acceleration

question 331

Short Answer

SCENARIO 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 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 Scenario 14-16, what is the value of the test statistic to determine whether being a sedan or not makes a significant contribution to the regression model in the presence of the other independent variable at a 5% level of significance?

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Definitions:

Depersonalisation

The perception and treatment of self and others not as unique individual persons but as prototypical embodiments of a social group.

Ingroup Prototype

The most representative or ideal example of the characteristics and behaviors of an ingroup, serving as a standard or model for group members.

Outgroup Prototype

refers to the generalized, often simplified, perceptions or stereotypes that individuals hold about members of a group to which they do not belong.

Relative Homogeneity Effect

A perception bias where individuals see out-group members as more similar to each other than in-group members, often leading to stereotyping.