I have some data on the number of times each of my machines turned off (due to an error) in a particular time period. There are about 6 different classes of machines being used to construct a total population of 50 machines. I wanted to analyze the stability of the 6 classes of machine relative to each other.
An acquaintance suggested that I could do some heavy-hitter analysis during a brief chat to determine if some machines are shutting down more than others. Can someone tell me how to systematically perform this analysis or if there is a formal name for this kind of analysis?