code: public static double skewnessSE(FlatDataCollection flatDataCollection) {
  	    int n = count(flatDataCollection);
          if(n<=2) {
              throw new IllegalArgumentException("The provided collection must have more than 2 elements.");
          }
          
          double skewnessSE=Math.sqrt((6.0*n*(n-1.0))/((n-2.0)*(n+1.0)*(n+3.0)));
          
          return skewnessSE;
      }
docs: Calculates Standard Error of Skweness. Uses a formula as suggested by
  http://en.wikipedia.org/wiki/Skewness
  
  @param flatDataCollection
  @return