confidence level

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Related to confidence levels: confidence limit

level

 [lev´el]
relative position, rank, or concentration.
l's of care the six divisions of the health care system: preventive care, primary care, secondary or acute care, tertiary care, restorative care, and continuing care.
background level the usual intensity of a chemical or other stimulus in the environment.
confidence level the probability that a confidence interval does not contain the population parameter.
l's of consciousness see levels of consciousness.
lowest observed adverse effect level (LOAEL) (lowest observed effect level (LOEL)) in studies of the toxicity of chemicals, the lowest dosage level at which chronic exposure to the substance shows adverse effects; usually calculated for laboratory animals.
no observed adverse effect level (NOAEL) (no observed effect level (NOEL)) in studies of the toxicity of chemicals, the highest dosage level at which chronic exposure to the substance shows no adverse effects; usually calculated for laboratory animals.
level of significance a statistical measure that serves as the cutoff point used to determine whether a null hypothesis is retained or rejected; the probability of incorrectly rejecting the null hypothesis (see Type I error).
sterility assurance level (SAL) the probability that a process makes something sterile (see sterilization). An SAL of 10−6 is the recommended probability of survival for organisms on a sterilized device. This level means that there is less than or equal to one chance in a million that an item remains contaminated or nonsterile.

confidence level

The probability associated with a confidence interval, and stated as a part of that interval.

confidence

degree of assurance.

confidence interval
a range of values about a sample statistic that has a specified probability of including the true value of the statistic.
confidence level
1 minus the type 1 error; the probability that the trial under consideration will show no significant difference when there is in fact no significant difference between the treatments.
confidence limits
the highest and lowest values in a confidence interval.
References in periodicals archive ?
When attempting to measure process risk or confidence levels, we assume that the model (in our example the decks of cards) correctly describes claim frequency and severity.
With confidence levels at the lowest for four years, the decision to hold rates came as no surprise following the slowdown in the housing market and lower growth in borrowing,' he said.
The news comes after confidence levels rebounded somewhat in the second quarter of 2003 following a heavy fall between the middle of last year and March this year.
A clear majority of Americans (60-70%) reported that their confidence level for each of the top five health care issues did not change based on the State of the Union Address.
If it were not for allowing FDI in multi- brand retail and hike in diesel prices, business confidence levels would have been worse for Q2 than Q1
Hamblin said the latest data, based on a survey of 2,029 people between October 2 and October 21, showed confidence levels had remained static at minus three points.
We are still waiting for a meaningful upward change in confidence levels to take hold in the rest of the world.
Previous workforce studies from 2001 and 2003 also showed us that issues such as terrorist attacks and economic uncertainty haven't shaken their confidence levels.
This study was taken to full feasibility study confidence levels over the areas required for environmental assessment purposes.
BOSTON -- Generations Differ on Confidence Levels, but All Are Mindful of Parents' Savings Mistakes; Fidelity's SimpleStart(sm) IRA Helps Investors Automate Savings Easily