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.
What is Atmospheric Pressure? Atmospheric pressure is a force of a weight of air applied to a surface below it. In simple terms, atmospheric pressure is also the same as air pressure. To imagine clearly, what atmospheric pressure is, simply think of a force in the atmosphere that is applied to a specific area. A barometer is an instrument that measures atmospheric pressure.