[godelski]

> The ads performed equally well in regard to total responses

Good sample size. This probably tells us that there isn't much difference posting salary and the people applying to each. This may be unsurprising since not posting salaries is already the norm.

> better candidates responding to the ones without salary ranges

I have a feeling that this is a particularly low (and highly noisy) sample.

I think you are overstating the significance of your results.