Does your analysis show more revenue than what is actually being generated? Or you are getting results that are too skewed to make actual sense? Make sure you follow these 3 ways to avoid making data driven mistakes
1) Get right data: make use of latest data and look for duplicate, missing values and outliers. It is also imperative that you have enough data while drawing an analysis.
2) Ask questions: Sometimes analysts apply techniques they haven’t really examined. Asking questions makes you better understand the problem at hand
3) Make productive use of spread sheets: if while looking at data, you are looking at spreadsheet, remember to keep data and formulae separated.
Read more at: http://www.forbes.com/sites/teradata/2015/07/08/how-to-make-a-bad-data-driven-decision-in-three-easy-steps/