'new model automobile is fitted Miles per gallon versus speed (miles per hour) for with least squares regression line. Following is computer output of the statistical analysis of the data:
Dependent variable: Miles per gallon
Source Regression Residual
of Squares Hean Square F-ratio Sum 199.34 199.34 3 . 79 315 54 5.59
Variable Constant Speed
Coefficient 38 929 0.2179
SE Coef 5. 651 0.112
t-ratio 6 .89 ~1.95
0 . 000 0. 099
R-Sq 38 . 78 7. 252 with
R-Sq(adj) 28 . 5 8 degrees
freedom
Which of the following gives 99% confidence interval for the slope of the regression line?
(A) ~.2179 3.707(0.112) (B) ~0.2179 $ 3.14300.112/,8 )
(C) -0.2179 + 3.70700.112/ ,B (D) 38.929 + 3.143(5.651/,/8 ) (E) 38.929 + 3.707(5.651/,8 )'