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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 correct interpretation for the estimated coefficient for Cargo Vol?
Prospective Customers
Potential clients or customers who are considered likely to purchase a business's products or services.
Flying Car
A type of vehicle that can function both as a standard road vehicle and an aircraft, offering a personal air travel option.
Ultimate Consumers
The end-users who purchase and use products and services for their personal use, as opposed to buying them for resale or production.
Organizational Buyers
Refers to entities such as businesses, governments, and institutions that purchase goods or services for use in the production of other goods and services, for resale, or for general business operations.
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