... calculator to calculate the test statistic and p-value for the paired samples or ... Hypothesis Testing - one tailed ' t ' disribution. ... <看更多>

2 means (paired) - Hypothesis Testing1,2 ... use Standard deviation of difference calculator below to get an approximate value of σd. ... Two-tailed ... <看更多>

typically consist of a sample of matched pairs of similar units, or one group of units that has been tested twice (a "repeated measures" t-test) ... ... <看更多>