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

question 5

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:

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Positive effects on the heart and blood vessels, typically resulting from regular exercise, healthy diet, and avoidance of harmful behaviors.

Cognitive Benefits

The positive effects on the brain's function, including improved memory, attention, and problem-solving capabilities, often resulting from engaging in physical, social, or mental challenges.

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