We have data on 4,071 students for whom we have recorded their race (white, black, other) and their height in centimeters.We would like to investigate the association of these variables with the weight in kilograms.The following results were obtained for a linear regression model.

Source SS df MS Number of obs = 4, 071 E (4, 4066) = 328. 17 Model | 243294 .94 60823 . 7351 Prob > F 0 . 0000 Residual how 753608 . 514 4, 066 185.343953 R-squared = 0 . 2441 .+ Adj R-squared = 0. 2433 11 1 996903 . 454 Total mmmmmm 4, 070 244. 939424 Root MSE 13 . 614 weightkg I Coel. Std. Err. P> It| [95% Conf. Interval] -+ heightcm . 7164207 . 030964 23.14 0 . 000 . 6557144 . 777127 female 7 . 043856 . 9058594 7. 78 0 . 000 5 .267876 8 . 819836 white -3. 552731 . 6814034 -5 . 21 0. 000 -4 . 888654 -2. 216807 other -9. 573996 1 . 769315 -5. 41 0 . 000 -13 . 04282 -6. 10517 cons -48 .87639 5 . 705812 -8.57 0 . 000 -60 . 06291 -37 . 68988