Determine the tvalue in each of the cases. a Click the icon to View the table of areas under the tdistribution. [a] Find the tvalue such that the area in the right tail is 0.02 with 27 degrees of freedom. 2.158 (Round to three decimal places as needed.) [bJ Find the t-value such that the area in the right tail is 0.25 with 20 degrees of freedom. 0.63? (Round to three decimal places as needed.) [1:] Find the tvalue such that the area left of the tvalue is 0.005 with 16 degrees of freedom. [Hintz Use symmetry] 2.921 (Round to three decimal places as needed.) (cl) Find the critical tvalue that corresponds to 30% condence. Assume 12 degrees of freedom. (Round to three decimal places as needed.)