K Determine the upper tail critical value ta 2 in each of the following circumstances d 1 0 90 n 33 e 1 0 95 n 8 a 1 0 90 n 68 b 1 a 0 99 n 68 c 1 0 90 n 46 Click here to view page 1 of the table of critical values Click here to view page 2 of the table of critical values a t Round to four decimal places as needed Critical Values for the t Distribution Page 1 Critical Values of t For a particular number of degrees of freedom entry represents the critical value of t corresponding to the cumulative probability 1 a and a specified upper tail area a Degrees of Freedom 1 2 3 10 11 12 0 75 0 25 1 0000 0 8165 0 7649 0 7407 0 7267 0 7176 0 7111 0 7064 0 7027 0 6998 0 6974 0 6955 0 90 Cumulative Probabilities 0 10 3 0777 1 8856 1 6377 1 5332 1 4759 1 4398 1 4149 1 3968 1 3830 1 3722 1 3634 1 3562 0 975 Upper Tail Areas 0 025 0 95 0 05 6 3138 2 9200 2 3534 2 1318 2 0150 1 9432 1 8946 1 8595 1 8331 1 8125 1 7959 1 7823 12 7062 4 3027 3 1824 2 7764 2 5706 2 4469 2 3646 2 3060 2 2622 2 2281 2 2010 2 1788 0 99 0 0 01 31 8207 6 9646 4 5407 3 7469 3 3649 3 1427 2 9980 2 8965 2 8214 2 7638 2 7181 2 6810 26502 t 0 995 0 005 63 6574 9 9248 5 8409 4 6041 4 0322 3 7074 3 4995 3 3554 3 2498 3 1693 3 1058 3 0545 30123