A regression model relating a dependent variable, Y, with one independent variable, X1, resulted in an SSE of 400. Another regression model with the same dependent variable, Y, and two independent variables, X1 and X2, resulted in an SSE of 320. At α = .05, determine if X2 contributed significantly to the model. The sample size for both models was 20.

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The Answer of A regression model relating a dependent variable, Y, with one independent variable, X1, resulted in an SSE of 400. Another regression model with the same dependent variable, Y, and two independent variables, X1 and X2, resulted in an SSE of 320. At α = .05, determine if X2 contributed significantly to the model. The sample size for both models was 20.

A Regression Model Relating a Dependent Variable, Y, with One