a. Use the t test and a = 0.05 to test H₀: b₁ = 0 and H₀: b₂ = 0.
b. Determine the SSE value.
c. Determine the value of R2 and explain its meaning. 

 

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FIGURE D16.1d The regression equation is Y - - 169 + 12.2 x - 0.177 xSQ Predictor Coef SE Coef Constant -168.8 39.79 -4.74 0.024 12.187 2.663 4.58 0.020 XSQ -0.17704 0.04290 -4.13 0.026 S- 3.248 R-aq - 94.54 R-sq (adj) - 90.84 Analysis of Variance SOURCE DF MS Regression Residual Error 2 541.85 270.92 25.68 0.013 31.65 10.55 Total 573.50 FIGURE D16.1d The regression equation is Y - - 169 + 12.2 x - 0.177 xSQ Predictor Coef SE Coef Constant -168.8 39.79 -4.74 0.024 12.187 2.663 4.58 0.020 XSQ -0.17704 0.04290 -4.13 0.026 S- 3.248 R-aq - 94.54 R-sq (adj) - 90.84 Analysis of Variance SOURCE DF MS Regression Residual Error 2 541.85 270.92 25.68 0.013 31.65 10.55 Total 573.50