HLs Type I & II errors 4.18
You need to feel confident with Hypothesis (1%, 5%, 10% significance level) testing before starting the below activities (a quick overview reminder is provided in the graphs below). How sure are we/scientists/researchers, however, that we haven't made a mistake? That we haven't REJECTED our original hypothesis, when actually, it's true (Type I error), or that, even though we found NO evidence in the samples we took...