1. If you are told that, in general, 55% of all mice exhibit a particular behavior, and you take a random sample of 100 mice and discover that this particular behavior occurs in 78% of your sample, do you think that the mice you've selected are, by chance, different from most mice, or do you think that the given percentage of 55% is not correct? What do you base your answer on?
2. : If you know for certain, that the behavior referred to in the previous question is, in fact, 55%, then what possibly could account for getting a random sample of 78%? If your sample wasn't random, what might account for getting a sample proportion of 78%