Choose the dependent variable (the response variable to be "explained") and the independent variable (the predictor or explanatory variable). (a-1) Dependent Variable multiple choice 1

Weight City MPG

(a-2) Independent Variable multiple choice 2

City MPG Weight

(b) Obtain the regression equation. (Negative values should be indicated by a minus sign. Round your answers to 4 decimal places.) Y = X + (c) Calculate R2. (Round your answer to 4 decimal places.) R2 (d-1) Zero is contained in the 95% confidence interval. multiple choice 3

Yes No

(d-2) The slope is different from zero. multiple choice 4

Yes No

(e) Calculate the degrees of freedom and t-critical for a two-tailed t test for zero slope at = .05. (Round your answers to 2 decimal places.) Degrees of freedom t - critical

(f-1) Small p-values tell us the null hypothesis is false. multiple choice 5

Yes No

(f-2) The sample provides significant evidence that the slope is negative. multiple choice 6

No Yes