Whether you are technical minded or not, this is in my opinion the easiest way to implement Google analytics. All you need is the BIGSHOT™ Google Analytics plugin. I am assuming that you have already created your Google analytics account. If not, do so first.
Download the plugin from the link above and install via Extensions -> Install/Uninstall
Navigate to Extensions -> Plugin Manager and look for the System - BIGSHOT Google Analytics plugin then click on it. You will now see the following screen:
All that is left to do is enable the plugin and enter your Google analytics ID into the Web Property ID field. Your Google analytics ID will be something like UA-12345678-1.
Click Save, wait a day and you will start seeing data on your Google Analytics account. Easy as that!