9.2.7 Determine the t-value in each of the cases. Click the icon to view the table of areas under the t-distribution. (a) Find the t-value such that the area in the right tail is 0.005 with 8 degrees of freedom. 3.355 (Round to three decimal places as needed.) (b) Find the t-value such that the area in the right tail is 0.20 with 28 degrees of freedom. (Round to three decimal places as needed.)