(a) Find the t-value such that the area in the right tail is 0.20 with 6 degrees
ID: 3158874 • Letter: #
Question
(a) Find the t-value such that the area in the right tail is 0.20 with 6 degrees of freedom. (Round to three decimal places as needed.) (b) Find the t-value such that the area in the right tail is 0.10 with 14 degrees of freedom. (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 18 degrees of freedom. [Hint: Use symmetry.] (Round to three decimal places as needed.) (d) Find the critical t-value that corresponds to 50% confidence. Assume 30 degrees of freedom. (Round to three decimal places as needed.)
Explanation / Answer
(a)t(0.20,6)=+0.906
(b)t(0.10,14)=+1.345
(c)t(0.025,18)=-2.101
(d)t(0.5,30)=+/-0.683
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