Determine the​ t-value in each of the cases.
LOADING... Click the icon to view the table of areas under the​ t-distribution.
Question content area bottom
Part 1
​(a) Find the​ t-value such that the area in the right tail is 0.25 with 13 degrees of freedom.

0.694 ​(Round to three decimal places as​ needed.)
Part 2
​(b) Find the​ t-value such that the area in the right tail is 0.005 with 6 degrees of freedom.

3.707 ​(Round to three decimal places as​ needed.)
Part 3
​(c) Find the​ t-value such that the area left of the​ t-value is 0.025 with 27 degrees of freedom.​ [Hint: Use​ symmetry.]

negative 2.052 ​(Round to three decimal places as​ needed.)
Part 4
​(d) Find the critical​ t-value that corresponds to 60​% confidence. Assume 17 degrees of freedom.

enter your response here ​(Round to three decimal places as​ needed.)