Determine the t critical value(s) that will capture the desired t-curve area in each of the following cases. (Assume that central areas are centered at t = 0. Round your answers to three decimal places. ) LA USE SALT (a) Central area = 0.95, df = 15 F (b) Central area = 0.95, df = 30 F (c) Central area = 0.99, df = 30 F (d) Central area = 0.99, df = 50 (e) Upper-tail area = 0.01, df = 25 (f) Lower-tail area = 0.025, df = 5