But you don't need to run statistical analysis to understand that
You don't seem to understand what the OP is trying to analyse. They're using the money withdrawn from and deposited to exchanges to predict future price movements,
not just trying to speculate about what people may have deposited or withdrawn at a specific time.
I didn't quite understand what you wanted to say
I mean by the OP "trying to speculate about what people may have deposited or withdrawn at a specific time", according to you. Anyway, you can be pretty sure that this is not what I meant myself. I meant exactly what you wrote first, i.e. evaluating the amount of funds withdrawn (deposited) to "predict future price movements". And in the sentence before the one you quoted I wrote just about that, i.e. people massively withdrawing money from all exchanges may be a sure sign of a future price fall (or at least, significant change), and you don't need correlation analysis to grasp that. You should rather look at a specific cause of this "bank run", so to speak