A Concise and Precise Definition of P-Value

Quote: If you are a glutton for punishment and want to further explore the definition of p-value, peruse the Wikipedia page on the subject. It cannot be proved with any degree of certainty that statisticians actually wrote the page, but in all probability, they did. The definition illustrates why the concept makes even very smart people reach for their liquor cabinets: "In statistical hypothesis testing, the p-value is the probability of obtaining a test statistic at least as extreme as the one that was actually observed, assuming that the null hypothesis is true." And the Wiki page tellingly spends more space on "frequent misunderstandings" than it does on the definition itself.