Importing data into inference app

[Tim Wessman]

(been a while since I worked on the inference stuff - so I may be remembering wrong)

These questions are important here I think:

Do you know the population standard deviation?
Do you have a sufficiently large sample that you can reasonable infer your sample is representative of the population?

If so, then Z is what what you want. Else, switch to a T test.

The T test import will calculate the sample standard deviation and bring it in. I think that is what you want.