The interpretation of the slope coefficient in the model 1n y = + 1n + is as follows: i β0 β1 xi μi a. a change in x by one unit is associated with a β change in y. 1 b. a change in x by one unit is associated with a 100 β % change in y. 1 c. a 1% change in x is associated with a change in y of 0.01 β . 1 d. a 1% change in x is associated with a β % change in y