Just a very short message to direct you to my article on statistical significance over on the Kissmetrics blog. The emphasis is on intuitive means to understanding the key ideas.
Check Out My Guide to Statistical Significance on Kissmetrics
Fun, example-filled guide, aimed at building intuition
This external article was originally part of my Entreprenerd: Marketing for Programmers book, most of which is available to read for free on jackkinsella.ie
The general principles of targeting followed by a tour of the available options on the major platforms
Internal linking strategies, sitemaps, and HTTPS
Rationed views, gas pedals, per person frequencies, when to trust platform reps