- #1

- 5,100

- 124

Is there a formula for this? I am not a math student and this is not homework. This is a real life engineering problem I am facing. I have 140mVrms of white noise( total random) riding on a DC level. I want to find the DC level. I want to know if I spot sample 30 times and take the average, how accurate I can get to the true DC level.

Thanks