Determine the t-value in each of the cases. LOADING... Click the icon to view th
ID: 3353255 • Letter: D
Question
Determine the t-value in each of the cases.
LOADING...
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
15
degrees of freedom.
1.341
(Round to three decimal places as needed.)
(b) Find the t-value such that the area in the right tail is
0.01
with
27
degrees of freedom.
2.473
(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
14
degrees of freedom. [Hint: Use symmetry.]
0.868
(Round to three decimal places as needed.)
Explanation / Answer
a) Use excel function
T.INV(0.90,15)
=1.341
b) Use excel function
T.INV(0.99,27)
=2.473
c) Use excel function
T.INV(0.20,14)
=-0.868
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