Question 1119653
It means that we are highly confident (probably 95%) that the true value of the entire population (which we can never know) is likely (highly confident) between 11 and 17%.  What isn't said is that any value in that interval is equally likely, but the 14% was the point estimate, meaning that was the value for those 2000 people..  

Also what is of concern is that "2000 respondents" suggests some lack of randomization.  

Another way of saying it is that we could take multiple polls of 2000 from the same population (different people) and 95% of them (typical value) would have results somewhere in the 11-17% interval.  We just don't know which ones are right.  

note that the true value either is or isn't in the interval (100/0).  Because that is not a useful probability statement, we use confidence.