[florakel]

Google does not use Google Analytics data for SEO purposes. What they measure are bounces back to the search result list. E.g. User clicks on a search result link, did not like what he saw and clicked the back button after 2 seconds to refine his search or choose another links rom the result list. This shows google that they sent the user to the wrong page (for whatever reason).

[hashtree]

Exactly correct, backed up via Google's own search patents, statements, and third-party observations. Google has many ways without analytics to measure this.