SCENARIO 13-9 You Decide to Predict Gasoline Prices in Different Cities and Cities

question 126

Multiple Choice

SCENARIO 13-9
You decide to predict gasoline prices in different cities and towns in the United States for your term project.Your dependent variable is price of gasoline per gallon and your explanatory variables are per capita income and the number of firms that manufacture automobile parts in and around the city.You collected data of 32 cities and obtained a regression sum of squares SSR= 122.8821.Your computed value of standard error of the estimate is 1.9549.
-Referring to SCENARIO 13-9, if the variable that measures the number of firms that manufacture automobile parts in and around the city is removed from the multiple regression model, which of the following would be true?

• A)The adjusted r 2 will definitely increase.
• B)The adjusted r 2 cannot increase.
• C)The coefficient of multiple determination will not increase.
• D)The coefficient of multiple determination will definitely increase.

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Definitions:

Respirator

A device designed to protect the wearer from inhaling harmful dust, fumes, vapors, or gases.

Increased Afterload

A condition in which the heart has to work harder to eject blood due to increased vascular resistance.

Increased Preload

A condition in which there is an elevated volume of blood in the ventricles at the end of diastole, before the heart contracts.

Decreased Contractility

A reduction in the strength or ability of a muscle, particularly the heart muscle, to contract, which can affect overall muscle function.