Question

please answer all parts a-d and check if im correct please

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 0.20 with 8 degrees of freedom. 0.889 (Round to three decimal places as needed,) (b) Find the t-value such that the area in the right tail is 0.15 with 22 degrees of freedom. 1.061(Round to three decimal places as needed.) (c) Find the t-value such that the area left of the t-value is 0.025 with 28 degrees of freedom. [Hint: Use symmetry.] Round to three decimal places as needed.) (d) Find the critical t-value that corresponds to 98% confidence. Assume 21 degrees of freedom. □ (Round to three decimal places as needed.) Enter your answer in each of the answer boxes. MacBd

Answer 1

(a) valu : 01 -22 value:上2-0481 { (d) +valua C tuoo tailed) ralue 12-518