1. Bootstraping the Sobel statistic Function sobelFORregression.R Is the relationship between anxiety and dependence mediated by smoking status or mediated by number of cigarettes smoked?

2. Permutation Biologists, looking at the amount of a fluorescent proteins embedded in bones, thought that the proteins formed aggregates in certain location. They cut 28 bones in 10 slices each and counted the amount of fluorescent proteins. Their hypothesis is that the 2 consecutive values that are the highest are significantly higher that the other values. How can we test that?

3. Abstract on permutation introduction. Method: – Procedure – Data – Null hypothesis – Sampling under the null Results with p-value Discussion