why should i use the two groups sample when comparing two firms when collecting two group sample how to do analysis when sampling a population how to collect sample size when to do two group sampling what is sampling in ns why does logistic regression work when analyzing a sample how can the entire population of a firm be sampled why do we oversample population why do you oversample populations what is the correct sampling procedure for a NS study? why do you do an oversampling analysis for a two group sample? what is the correct sampling technique can a sample be two groups which is more accurate sampling of an entire population or of a sample of a small sample? why use two group sample how to collect an entire population of firm do i need to collect sample in logistic regression how does the population of a population differ from the sample of a population sample? how to sample a two s firms