Question

Use the calculator provided to solve the following problems.

a. Consider a t distribution with 15 degrees of freedom. Compute P(t>=-1.50) . Round your answer to at least three decimal places.

b. Consider a t distribution with 12 degrees of freedom. Find the value of such that p(-c<t<c)=0.90 . Round your answer to at least three decimal places.

P(t   >=      -1.50)=

c=

Answer 1

Solution:

a. Consider a t distribution with 15 degrees of freedom. Compute P(t>=-1.50)

Answer:

The excel function to find this probability is:

b. Consider a t distribution with 12 degrees of freedom. Find the value of such that p(-c<t<c)=0.90.

Answer:

The excel function to find this value is: