There is a close relationship between confidence intervals and significance tests. Specifically, if a statistic is significantly different from 0 at the 0.05 level, then the 95% confidence interval will not contain 0.
U.S. National Library of Medicine(0.00 / 0 votes)Rate this definition: Air Pressure. The force per unit area that the air exerts on any surface in contact with it. Primarily used for articles pertaining to air pressure within a closed environment.
Check your grammar now! : pressure exerted by air: a : atmospheric pressure b : the pressure within a container due to the compression of atmospheric gases Air pressure in the car tire was measured in pounds per square inch.