What was the use of it? Was he trying to induce something in the readers/audience? Can he construct the story with only 1 location?
Shakespeare plays often used another location for issues to be resolved. It is a technique that he chose in order to separate from the place of conflict where the characters work their way through it to a resolution.  \n\nCheck out Cliff or Sparks Notes.  You should be able to do a search and get them online.  Sparks notees used to be free online, but I haven't used them in a long time.  Check it out.\n\nSue
It can go far beyond that, as well.  If a study wasn't set up correctly, then there can BE no 'correct' interpretation.  This is especially common in drug testing.  Often companies are in such a hurry to get a new drug on the shelf that they don't take all the precautions in setting up their studies that they probably should.  For example, they don't conduct tests on as many people as they should, or they inadvertantly bias their data by not taking a random sample.  The problem usually stems from the fact that a doctor is the one responsible for running the tests, not a statistician.