However, by comparing price and yield, one can demonstrate the assertion of an inverse relationship. You will need to explain WHY this relationship behaves as observed. You will consult the text for theoretical explanations to phenomena you observe. You will consult other references to acquire additional or refined understandings which increase the conviction with which you are able to explain observed behavior. Analysis is like a detective game and requires a very suspicious mind in combination with consummate curiosity.
Analysis seeks reasons.
Almost all competent analysis requires research. Once the situation is understood, options for dealing with anomalies are identified and discussed. It should go without saying, but understanding the problem takes more time, more effort, and more Maalox than any other part of the process. If we spend more effort in understanding, we won't have to spend so much in reporting or solving. The presentation of data, while somewhat limited in choice of technique, is virtually unlimited in choice of style.