1. What percent of the total variation in velocity can be attributed to the model above?, Is the regression coefficient on load statistically significant? Show all 5 steps of the hypothesis test. Use alpha=.05, Interpret the intercept, Interpret the coefficient for "Load" in the model, Write the estimated regression equation from this Stata output, What is the predicted velocity for a samara with a disk loading .20? and In the data, a samara with a disk loading of .20 has a recorded velocity of 1.10. What is its residual?
   

. regress Velocity Load Source SS df MS Number of obs = 32 F (1, 30) 131 . 68 Model . 723432487 A . 723432487 Prob > F = 0. 0000 Residual . 164814388 30 . 005493813 R-squared = 0 . 8144 Adj R-squared 0 . 8083 Total E B . 028653125 Root MSE = D Velocity Coef. Std. Err. t P>It| [953 Conf. Interval] Load 5. 546493 . 483344 C 0. 000 4. 559372 6. 533613 cons -. 037738 . 1011162 -0.37 0 . 712 -. 2442449 . 1687688