Critical Value

{
  "id": "MLC-T-ENV-006944",
  "term": "Critical Value",
  "field": "Environment",
  "definition": "1. Smallest measured amount or concentration of analyte in a sample that gives rise to a Type I error tolerance of alpha under the null hypothesis that the true amount or concentration of analyte in the sample is equal to that of a blank. (The alternative hypothesis is that the true amount or concentration of analyte is greater than that of a blank.)\n\n2. The minimum observed result such that the lower 100 (1-α)% confidence limit on the result is greater than the mean of the method blanks.\n\n3. The minimum result which can be reliably discriminated from a blank (for example, with a 99% confidence level).\n\n4. The lowest result that can be distinguished from the blank at a chosen level, α, of statistical confidence.",
  "references": [
    "Adapted from Forum on Environmental Measurements (FEM) Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/critical-value/"
}