Snedecor and Cochran (1967) report results from an experiment on weight gain in rats as a function of source of protein and levels of protein. One of the groups was fed beef with a low amount of protein. The weight gains were
90, 76, 90, 64, 86, 51, 72, 90, 95, 78.
Verify that there are no outliers among these values when using a boxplot, but there is an outlier using the MAD-median rule.