Hello everybody,

I want to work out the difference between two proportions, and my textbook tells me to first state the 'sampling situation' for the difference between the first proportion and the second? I'm just about to carry out a t-test.

My question is what does it mean by 'sampling situation'?

Does it just mean; P1-P2? Is this a sampling 'situation' or just a sampling parameter?

Thank you.