ermine 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 USE SALT a Central area 0 95 df 10 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 30 f Lower tail area 0 025 df 5