A small p-value often means the observed data effect is statistically significant. Set a significance level to compare with the p-value to validate investment hypotheses. Utilizing p-values in Excel ...

The pursuit of science is designed to search for significance in a maze of data. At least, that’s how it’s supposed to work. To support or refute a hypothesis, the goal is to establish statistical ...

Your editorial “The FDA Returns to Its Bad Habits” (Feb. 21) explains, “Reata’s p-value was 0.014, which means there was a 1.4% chance that its positive result was a fluke.” A related, true statement ...