two-tailed

two-tailed

adj
(Statistics) statistics (of a significance test) concerned with the hypothesis that an observed value of a sampling statistic differs significantly from a given value, where an error in either direction is relevant: for instance, in testing the fairness of scales, an inspector will seek to exclude both overweight and underweight goods. Compare one-tailed
References in periodicals archive ?
two-tailed whip, no longer than the whipper's forearm,
The team also built two-tailed bots, which they found can swim even faster.
He has completely rewritten the chapter on regression modeling and added or clarified material on one-tailed and two-tailed tests, choosing the right statistical tests for a particular study, and programming.
The two-tailed t test was applied to determine statistically significant differences between the mean SiCa levels in the two groups both pre- and postoperatively.
Two-tailed testing is used when the null hypothesis is equal to a value, since we are interested in both values greater than or less than a value.
05 compared with their respective control hemispheres, paired, two-tailed Mann-Whitney U test ([dagger]) p < 0.
The analysis is done using formal test of hypothesis for the difference between two means of financial performances of corporations with three different supervisory board characteristics using both directional one-tailed and nondirectional two-tailed tests.
Robin Cheeky and the Magical Smileys is the first adventure of Robin Cheeky and his friend, Pluxie, the colorful two-tailed cat.
All comparisons are two-tailed tests unless directionally hypothesised, in which case the one-tailed probability is reported.