Output regressing Minutes on BikeSteel is shown below.

Residual standard error: 5.545 on 54 degrees of freedom

Multiple R-squared: 0.002558, Adjusted R-squared: -0.01591

F-statistic: 0.1385 on 1 and 54 DF, p-value: 0.7112

(a) What is Dr. Grove€™s predicted commute time if riding the steel bike?
(b) What is Dr. Grove€™s predicted commute time if riding the carbon bike?
(c) Based on this experiment, is there a significant difference between the commute time for the carbon bike and steel bike?

Transcribed Image Text:

Response: Minutes Coefficients: Std. Error 1.087 1.486 Estimate 108.342 -0.553 Pr(> It|) <2e-16 *** t value 99.624 -0.372 | (Intercept) BikeSteel 0.711