A Regression Model with One Independent Variable, X₁, Resulted in an SSE

question 18

Essay

A regression model with one independent variable, X₁, resulted in an SSE of 50. When a second independent variable, X₂, was added to the model, the SSE was reduced to 40. At $\alpha$ = 0.05, determine if X₂ contributes significantly to the model. The sample size for both models was 30.

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Definitions:

Traits

Enduring characteristics or behaviors that distinguish one individual from another.

Relationship Images

Internal representations or mental pictures individuals hold about relationships based on past experiences.

Adlerian

A psychological approach based on the theories of Alfred Adler, focusing on the importance of the feeling of inferiority and the striving for significance.