(a) Find the t-value such that the area in the right tail is 0.01 with 29 degrees of freedom. (Round to three decimal places as needed.) (b) Find the t-value such that the area in the right tail is 0.20 with 6 degrees of freedom. (Round to three decimal places as needed.)

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter61: Areas Of Circles, Sectors, And Segments
Section: Chapter Questions
Problem 2A: Find the area of the shaded portion of this figure. Round your answer to 2 decimal places.
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(a) Find the t-value such that the area in the right tail is 0.01 with 29 degrees of freedom.
(Round to three decimal places as needed.)
(b) Find the t-value such that the area in the right tail is 0.20 with 6 degrees of freedom.
(Round to three decimal places as needed.)
Transcribed Image Text:(a) Find the t-value such that the area in the right tail is 0.01 with 29 degrees of freedom. (Round to three decimal places as needed.) (b) Find the t-value such that the area in the right tail is 0.20 with 6 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 0.005 with 15 degrees of freedom. [Hint: Use symmetry.]
(Round to three decimal places as needed.)
(d) Find the critical t-value that corresponds to 90% confidence. Assume 15 degrees of freedom.
(Round to three decimal places as needed
Transcribed Image Text:(c) Find the t-value such that the area left of the t-value is 0.005 with 15 degrees of freedom. [Hint: Use symmetry.] (Round to three decimal places as needed.) (d) Find the critical t-value that corresponds to 90% confidence. Assume 15 degrees of freedom. (Round to three decimal places as needed
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