Determine the t-value in each of the cases.

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Part 1

(a) Find the t-value such that the area in the right tail is

0.01

with

22

degrees of freedom.

enter your response here

(Round to three decimal places as needed.)

Part 2

(b) Find the t-value such that the area in the right tail is

0.10

with

30

degrees of freedom.

enter your response here

(Round to three decimal places as needed.)

Part 3

(c) Find the t-value such that the area left of the t-value is

0.15

with

18

degrees of freedom. [Hint: Use symmetry.]

enter your response here

(Round to three decimal places as needed.)

Part 4

(d) Find the critical t-value that corresponds to

60%

confidence. Assume

27

degrees of freedom.

enter your response here

(Round to three decimal places as needed.)