Calculate the values of X, where X ~ Students t(d.o.f.=n-1), for which 2.5% of the data lies in the lower tail and 2.5% lies in the upper tail, and where n=10 such that X ~ Students t(d.o.f.=9). (Report the absolute value of your answer to 2 decimal places)

Instructions:

Use either the "=T.INV.2T()" or "=T.INV()" functions. As a bonus, see if you can work out how to use both functions to give you the same answer!