Quiz: Ch 9 Quiz This Question: 4 pts 5 of 15 (1 Determine the t-value in each of
ID: 3320921 • Letter: Q
Question
Quiz: Ch 9 Quiz This Question: 4 pts 5 of 15 (1 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 tall is 0.25 with 28 degrees of freedom. Round to three decimal places as needed.) (b) Find the t-value such that the area in the rigt tail is 0.02 with 16 degrees of freedom. (Round to three decimal places as needed.) e) Find the tvalue such that the area left of the tvalue is 0.05 with 17 degrees of freedom. Hint Use symmetry] (Round to three decimal places as needed.) (d) Find the critical t-value that corresponds to 60% confidence. Assume 7 degrees of freedom. (Round to three decimal places as needed.)Explanation / Answer
solution:-
a. the t value for the area in the right tail is 0.25 with 28 degree of freedom 0.683
b. the t value for the area in the right tail is 0.02 with 16 degree of freedom 2.235
c. the area left of the t value is 0.05 with 17 degree of freedom -1.740
d. the critical t value that corresponds to 60% confidence of 7 degree of freedom 0.896
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