Potrebbe essere "I dati raccontano bugie?", ma in effetti servirebbe più contesto..

4 (fam.) bugia: to tell stories, raccontare frottole 5 diceria, voce: so the story goes, a quanto si dice.

Inglese term (edited): Do the data tell a story?

What is means is the following:

Always make sure that the data you have collected bring you to a meaningful conclusion: What do the numbers or facts you have put together tell you? What is the conclusion you can draw based on the data you have and does this final conclusion make any sense? What do you learn from it? The outcome can be a new way of seeing problems and deciding how to act and what to do next.

Breakthrough Analysis: Make Your Data Tell a Story!

Here is an article that can help understand this better:

http://www.iwaswondering.org/marta_print.html

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Note added at 46 mins (2007-07-09 21:57:30 GMT)
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Sorry for the typo:

What this* means is...