Please give me answers from a through e

Score: 0.2 of 1 pt 2 of 6 (6 complete) HW Scd 8.2.12 Determine the upper-tail critical value ta/2 in each of the following circumstances. a. 1-a=0.99, n= 60 d. 1-=0.99, n=21 b. 1-a = 0.95, n=60 e. 1-a=0.90, n=39 c. 1-a=0.99, n= 68 Click here to view page 1 of the table of critical values for the t distribution. Click here to view page 2 of the table of critical values for the t distribution. a. t= 2.6618 (Round to four decimal places as needed.) b. t= (Round to four decimal places as needed.) Vi Vi (1,1) More Score: 0.2 of 1 pt 2 of 6 (6 complete) HW Scd 8.2.12 Determine the upper-tail critical value ta/2 in each of the following circumstances. a. 1-a=0.99, n= 60 d. 1-=0.99, n=21 b. 1-a = 0.95, n=60 e. 1-a=0.90, n=39 c. 1-a=0.99, n= 68 Click here to view page 1 of the table of critical values for the t distribution. Click here to view page 2 of the table of critical values for the t distribution. a. t= 2.6618 (Round to four decimal places as needed.) b. t= (Round to four decimal places as needed.) Vi Vi (1,1) More