This is false - noise doesn't hurt this test at all. See my comment explaining why: https://news.ycombinator.com/item?id=10483991 https://news.ycombinator.com/

This is false - noise doesn't hurt this test at all. See my comment explaining why: https://news.ycombinator.com/item?id=10483991 https://news.ycombinator.com/item?id=10483991 Bad measurements add noise (and increase the sample size required) but they don't invalidate the bias detection procedure.