How do you find the p-value of a test statistic with a ti-89 titanium?

I know this is an odd question, but does anyone know how to find the p-value on a ti-89 titanium. It is for a statistics cl. Let's say you are given the test statistic of t=1.11 and a sample size of n=4, and it wants you to find the p-value for the right tailed test (or two tailed/left tailed). I need to use my calculator to find it, but don't know how. Does anyone happen to know how to find the p-value with just the test statistic and n value with a ti-89 titatnium?