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 ...

Test equating constitutes a critical element of modern assessment practices, ensuring that scores from different test forms are directly comparable. Recent advancements have pooled statistical ...

This is a preview. Log in through your library . Abstract Brown and Zhao (2012) (Sankhyā, Series A, Volume 64, pp 611-625) developed a new test for the Poisson distribution and compared it with the ...

This is a preview. Log in through your library . Abstract For two-period crossover trials where the residual carryover can only exist in the presence of treatment effect, Willan (1988, Biometrics 44, ...

My print column this week examines the concept of statistical significance -- a concept that the Supreme Court recently weighed in on, but that remains elusive even to some scientists who use it to ...