Importing data into inference app

[Tim Wessman]

Yes, because you are using a Z test you must provide the *known* population standard deviation. Those values you see are simply the "default" values for that field in the application. That is why the import does not show any standard deviation nor calculate it. Doing so would be incorrect.

Like I said, you should be using a T test for this experiment data set. Using a T with the import *would* calculate your sample standard deviation like you need.

You don't have a very sufficiently large N with only 6 data points, but instead have a T test with 5df. To use a Z correctly you must provide the known population standard deviation.