Use the t-table to answer the following questions: a) What is the value of t for 8 degrees of freedom when the area in one tail is 0.01? b) How many degrees of freedom make t = 3.106 when the area in...

Use the t-table to answer the following questions:

a)  What is the value of t for 8 degrees of freedom when the area in one tail is 0.01?

b)  How many degrees of freedom make t = 3.106 when the area in one tail is 0.005?

c)  What is the value of t such that the area to the left of -t and to the right of t together equals 0.20?  Assume 23 degrees of freedom.