Determine the upper-tail critical value ta/2 in each of the following circumstances. a. 1 a 0.99, n=17 b. 1 a 0.90, n=17 d. 1-a 0.99, n=34 e. 1 a 0.95, n = 58 c. 1 a 0.99, n=40 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= (Round to four decimal places as needed.)