?(a) Find the? t-value such that the area in the right tail is 0.20 with 21 degrees of freedom. ?(Round to three decimal places as? needed.)
?(b) Find the? t-value such that the area in the right tail is 0.15 with 16 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 19 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 21 degrees of freedom ?(Round to three decimal places as? needed.)
a_)
from excel: t value =t.inv(1-0.20,21)=0.859
b)t value =T.INV(1-0.15,16) =1.071
c) t value =t.inv(0.005,19)=-2.861
d)
t value =t.inv((1+0.9)/2,21) =1.721
?(a) Find the? t-value such that the area in the right tail is 0.20 with 21...
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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 0.10 with 24 degrees of freedom. (Round to three decimal places as needed.) (b) Find the t-value such that the area in the right tail is 0.005 with 10 degrees of freedom. (Round to three decimal places as needed.) (c) Find the t-value such that the...
(a) Find the t-value such that the area in the right tail is 0.20 with 13 degrees of freedom (b) Find the t-value such that the area in the right tail is 0.25 with 27 degrees of freedom (c) Find the t-value such that the area left of the t-value is 0.02 with 24 degrees of freedom. d) Find the critical t-value that corresponds to 80% confidence. Assume 27 degrees of freedom.
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...
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