SCENARIO 18-9 What Are the Factors That Determine the Acceleration Time (In

question 185

Short Answer

SCENARIO 18-9
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 ( R² _{yj.(All variables except j )} )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 ( R² _j )are,respectively, 0.7461,0.5676,0.6764,0.8582,0.6632.
-Referring to Scenario 18-9,what is the value of the test statistic to determine whether MPG makes a significant contribution to the regression model in the presence of the other independent variables at a 5% level of significance?

---

Definitions:

Project's Scope

Project's scope refers to the specific goals, deliverables, tasks, costs, and deadlines involved in a project, defining its boundaries and what is or is not included in the work to be done.

Cash Flows

The sum total of financial transactions directed into and out of a corporation, markedly influencing its cash flow.

Depreciable Asset

An asset that loses value over time and for which depreciation can be applied for tax and accounting purposes.

Capital Gain

The profit earned from the sale of an asset that has increased in value over its purchase price.