Post-hoc testing is carried out after a statistical analysis where you have performed multiple significance tests, ‘post-hoc’ coming from the Latin “after this”. Post-hoc analysis represents a way to ...

When you bring a measurement instrument to a calibration lab, you assume that your instrument will come back within expected tolerances. But, how do you know? That's where laboratory proficiency tests ...

What is a one sample t test? The t test is a commonly used hypothesis test in statistics that allows us to compare the mean value of a group of sampled data with some hypothesized value, usually a ...