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Find the​ t-value such that the area in the right tail is 0.025 with 9 degrees...

Find the​ t-value such that the area in the right tail is 0.025 with 9 degrees of freedom. nothing ​(Round to three decimal places as​ needed.) ​(b) Find the​ t-value such that the area in the right tail is 0.25 with 29 degrees of freedom. nothing ​(Round to three decimal places as​ needed.) ​(c) Find the​ t-value such that the area left of the​ t-value is 0.15 with 7 degrees of freedom.​ [Hint: Use​ symmetry.] nothing ​(Round to three decimal places as​ needed.) ​(d) Find the critical​ t-value that corresponds to 60​% confidence. Assume 13 degrees of freedom. nothing ​(Round to three decimal places as​ needed.)

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