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

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 10CT
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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 0.005 with 16 degrees of freedom.
2.921 (Round to three decimal places as needed.)
Question Help v
(b) Find the t-value such that the area in the right tail is 0.05 with 21 degrees of freedom,
1.721 (Round to three decimal places as needed.)
(c) Find the t-value such that the area left of the t-value is 0.20 with 7 degrees of freedom. [Hint: Use symmetry.]
-0.896 (Round to three decimal places as needed.)
(d) Find the critical t-value that corresponds to 98% confidence. Assume 30 degrees of freedom.
(Round to three decimal places as needed.)
Enter your answer in the answer box and then click Check Answer.
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Transcribed Image Text: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 0.005 with 16 degrees of freedom. 2.921 (Round to three decimal places as needed.) Question Help v (b) Find the t-value such that the area in the right tail is 0.05 with 21 degrees of freedom, 1.721 (Round to three decimal places as needed.) (c) Find the t-value such that the area left of the t-value is 0.20 with 7 degrees of freedom. [Hint: Use symmetry.] -0.896 (Round to three decimal places as needed.) (d) Find the critical t-value that corresponds to 98% confidence. Assume 30 degrees of freedom. (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. (u) More All parts showing Clear All Check Answer O Type here to search $17 PM 4 ENG 47/221 DELL PoUp PoDn Insert Delete F12 PrtScr F11 F9 F10 F7 F8 F4 F5 F6 Num Lock F2 F3 Esc F1 Backspace & %3D 2$ % @ 8. 5 3 4 1 Y T W. E J K
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