Google analytics code must be in header. It was with old google analytics code that people used to place it in footer.
This is a asynchronous google analytics code and if there is any error in the code for the time being , your site will load properly without hanging or showing errors. Thats why its called as asynchronous tracking code
Placing asynchronous analytics tracking code in <body> have proved that their data is missing or not correct.
So my suggestion would be open wordpress header file and place the tracking code there...