A regression analysis involving 45 observations relating a dependent variable and two independent variables resulted in the following information.
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= .408 + 1.3387x1+ 2x2
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The SSE for the above model is 49. When two other independent variables were added to the model, the following information was provided.
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= 1.2 + 3x1 + 12x2 + 4x3 + 8x4
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This model's SSE is 40.
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At a .05 level of significance, test to determine if the two added independent variables contribute significantly to the model.
What will be an ideal response?
F = 4.5; p-value is between .01 and .025; reject H0; the two added variables contribute significantly.
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