#1 Consider a t distribution with 13 degrees of freedom. Compute P(t ≥ -1.63). Round your answer to at least three decimal places.

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

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

Last edited by a moderator: