Back in the day, my company had a site wide license for a popular stats package. Load up a spread sheet and it would perform the analysis. Beautiful graphs. All sorts of correlation values. I made quite a nice presentation showing such great insights. Unfortunately, mostly wrong. After sweating bullets for a couple of days I did find the correct answers. It's not the tool, it's the understanding of the tools. The stuff in the lower left corner. Very time consuming to acquire.