Question / 0 pts A multiple-regression equation with two predictor variables accounts for R2 = 18.5% of the variance in the Y scores for a sample of n = 30 individuals. . If SSy = 20, does the equation predict a significant portion of the variance for the Y scores? Test with a = .05. (Enter 'yes' or 'no') . If SSy = 200, does the equation predict a significant portion of the variance for the Y scores? Test with a = .05. (Enter 'yes' or 'no') . Did changing S Sy from 20 to 200 have any effect on the F-ratio? (Enter 'yes' or 'no')