Determine the uppertail critical values of F in each of the following twotail tests. a.u=0.05,n1=1[},n2=21 b. a: 0.02: n1=10_.n2=21 c. 0:20.10, n1 =10, n2=21 a. The critical value of F when a: 0.05: n1210: n:2 = 21 is D. (Round to two decimal places as needed.) b. The critical value of F when a = 0-02.n1:10; n2 = 21 is D. (Round to two decimal places as needed.) 1:. The critical value of F when a: 0.10; n1=10: n2 = 21 is D. (Round to two decimal places as needed.)