Connecting Google Analytics with your page is extremely easy. Make sure that you already have a Google Analytics account. If you don't you can sign up for one here.
Go to your main integrations dashboard to connect with Google Analytics:
Once you have connected your account from here, go to the experience manager interface for the page you want to connect, in the Integrations > Analytics tab:
Clicking on "Google Analytics" in the menu above will open the modal below so you can connect the page:
Don't forget to Update the page after you connect it with Google Analytics.
Note: This only tracks page views. If you would like to track more advanced metrics such as custom events with Google Analytics, please see this article: https://goo.gl/DKEUFp.