Conditions for valid t intervals | Confidence intervals | AP Statistics | Khan Academy

[@RustamBw]

02:24 why n should be exact greater than 30 (n>=30), why 30?
I didn't understand

[@chessandmathguy]

will videos like this be added to the AP Stats portion of the KA website soon? Thanks.

[@alinaa_a1009]

So then what test could we use to determine the confidence interval in this example?? Please help

[@raghuvirj]

Why does sample size to be >=30 to be called normal sample? Sal quotes central thearam for this but I am not sure who this works out to >=30.

[@FinalFact]

First