oh! i missed.
I applied late september as an international applicants.. so early.
And today I checked that committee might have taken interview before March i think.
Interview was almost same at the first page.
Why NCSU? What are you gonna do? Whats your name?
There were 4~5 people. Professor on the call, phd student, director...
And ask about basic two statistic questions, about regression part but i didnt well reply. Except for that, every question was about your things on resume.
They were kind and no pressure at all. Just do your best!