critical region

[ krit-i-kuhl ree-juhn ]

noun

, Statistics.

1. the rejection region for the null hypothesis in the testing of a hypothesis:

   The appropriate selection of a critical region is a fundamental problem in the development of permutation tests.

critical region

noun

1. that part of a statistical distribution in which the probability of a given hypothesis is less than the chosen significance level, so that the hypothesis would be rejected

Word History and Origins

Origin of critical region¹

First recorded in 1950–55

Example Sentences

And does metformin treatment lead to long-term negative physiological changes in the offspring, especially in connection with the development of neuronal circuits in the hypothalamus, a critical region in the regulation of energy homeostasis?

From Science Daily

“President Biden will make it absolutely clear that the United States will continue to engage both diplomatically and economically in this critical region made clear while this matters for the American people.”

From New York Times

"That tells us it's a critical region that is highly conserved, meaning that it has stayed much the same over the course of evolution. So maybe by targeting this region in all coronaviruses, we can come up with a universal therapy or vaccine."

From Science Daily

Moscow-installed authorities in Sevastopol, however, were taking extra measures to address Ukraine's increased attacks on Crimea, a critical region providing a platform from which Russia has launched many of its air attacks on Ukraine in the 19-month-long war.

From Reuters

Ukraine in recent days has launched a series of strikes on Russian military targets in occupied Crimea and the Russian Navy Black Sea Fleet's facilities, seeking to undermine Moscow's war efforts in the critical region.

From Reuters