confidence level

https://doi.org/10.1351/goldbook.C01246
The
probability
of covering the
expected value
of an estimated parameter with an interval estimated for the parameter (symbol 1α). The confidence level can be expressed as a number between 0 and 1, or in
percent
. The complementary quantity is known as the significance level.
Note:
In some cases the confidence level is dictated by the needs of the situation. In all other instances, use of 1α=0.95 is recommended.
Source:
PAC, 1994, 66, 595. (Nomenclature for the presentation of results of chemical analysis (IUPAC Recommendations 1994)) on page 599 [Terms] [Paper]