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SCENARIO 14-4
A real estate builder wishes to determine how house size (House) is influenced by family income (Income) and family size (Size). House size is measured in hundreds of square feet and income is measured in thousands of dollars. The builder randomly selected 50 families and ran the multiple regression. Partial Microsoft Excel output is provided below:
Also SSR (X1 | X2) = 36400.6326 and SSR (X1 | X2) = 3297.7917
-Referring to Scenario 14-4,the partial F test for
H0 : Variable X1 does not significantly improve the model after variable X2 has been included
H1 : Variable X1 significantly improves the model after variable X2 has been included has_____ and _____degrees of freedom.
Scientific Reasons
Explanations or justifications for phenomena, based on empirical evidence and principles from the natural sciences.
Political Reasons
Motivations or justifications for actions, decisions, or policies that are based on the interests, strategies, or objectives of political entities or ideologies.
Control Variable
A variable that is kept constant during a research experiment to ensure that any changes observed are due to the independent variable being tested.
Hypothesized Relationship
A proposed connection or association between variables, often suggested as a basis for further empirical investigation.
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