Question

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 0.10 with 5 degrees of freedom. Answer? ​(Round to three decimal places as​ needed.) ​

(b) Find the​ t-value such that the area in the right tail is 0.02 with 16 degrees of freedom. Answer? ​(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 25 degrees of freedom.​ [Hint: Use​ symmetry.] Answer? ​(Round to three decimal places as​ needed.)

​(d) Find the critical​ t-value that corresponds to 98​% confidence. Assume 30 degrees of freedom. Answer? ​(Round to three decimal places as​ needed.)

Answer 1

the​ t-value such that the area in the right tail is 0.10 with 5 degrees of freedom is

the​ t-value such that the area in the right tail is 0.02 with 16 degrees of freedom is

  the​ t-value such that the area left of the​ t-value is 0.15 with 25 degrees of freedom is

  the critical​ t-value that corresponds to 98​% confidence with 30 degrees of freedom is