Too Long; Didn't Read
You’ll find p-values lurking all over <a href="http://bit.ly/quaesita_datasci" target="_blank">data science</a> (and all the rest of science, for that matter). If you took STAT101, the explanation you probably heard runs something like this: <em>A p-value is the probability of observing a </em><a href="http://bit.ly/quaesita_statistics" target="_blank"><em>statistic</em></a><em> at least as extreme as ours, conditional on the null hypothesis.</em> No wonder that didn’t stick! Let’s try it with puppies instead…