two-tailed

British  

adjective

1. 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

---

Example Sentences

For a two-tailed 95 percent confidence interval, what is the appropriate t value to use in the formula?

From Textbooks • Mar. 27, 2020

The test may be left-, right-, or two-tailed, and its hypotheses are always expressed in terms of the variance or standard deviation.

From Textbooks • Mar. 27, 2020

This tells us that this is a two-tailed test: if the machine is malfunctioning it will be shutdown regardless if it is from over-filling or under-filling.

From Textbooks • Nov. 29, 2017

If you input the lists in a different order, you get a test statistic of 0.3335 but the p-value is the same because this is a two-tailed test.

From Textbooks • Sep. 19, 2013

Let my daughter keep her two-tailed hog, to eat when venison is scarce," he drily answered, "and the little gun, which has two muzzles.

From The Deerslayer by Cooper, James Fenimore