I read this phrase from this article (https://towardsdatascience.com/can-analysts-and-statisticians-get-along-5c9a65c8d056)
Follow the one golden rule: call your shots before you take them or stick to describing what’s in front of you.
Real statisticians turn their noses up at your so-called “insights” if you failed to follow the one golden rule: call your shots before you take them. Otherwise, stick to describing your dataset and don’t reach beyond it. Please don’t take yourself too seriously and don’t ask anyone else to either.
I have tried to look up "call the shot". But in this context, I am not sure does I understand it right though.