3. (7 pts.) The estimated logit regression in your textbook is Pr (deny = 1|? black): F(-4.13 + 5.37 P/I ratio + 1.27 black), where p/l is payment to loan ratio; black is a dummy variable: equals 1 if the applicant is an Aican American, 0, otherwise; deny is a dummy variable, equals 1 if the mortgage is denied, 0 otherwise. a. Is there a meaningful interpretation to the slope for the P/I ratio? (4 pts.) b. Calculate the increase of a rejection probability for both blacks and whites as the PH Ratio increases from 0.1 to 0.2. (3 pts.)