Answer Happy

I need some help with this question
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.) in USE SALT (a) Central area = 0.95, df = 15 + (b) Central area = 0.95, df = 20 + (C) Central area = 0.99, df = 20 + (d) Central area = 0.99, df = 60 + (e) Upper-tail area = 0.01, df = 25 (f) Lower-tail area = 0.025, df = 5 You may need to use the appropriate table in the Appendix of Tables to answer this question.