So we have a type of statistical study described here. I encourage you to pause this video, read it, and see if you can figure out, is this a sample study? Is it an observational study? Is it an experiment? And then also think about what type of conclusions can you make based on the information in this study. All right, now let's work on this together. British researchers were interested in the relationship between farmers' approach to their cows and cows' milk yield.