Confidence Interval Calculator For A Mean
Confidence Interval Calculator For A Mean: a planned Super Calculator tool. Stub page: the tool, its formula and a worked example are not published yet.
Confidence Interval Calculator For A Mean is a planned calculator in the mathematics section of Super Calculator, covering statistics and probability.
What this calculator will compute
Inputs: sample mean, sample standard deviation, sample size n, confidence level (%) and population size (optional).
Outputs: lower bound, upper bound, margin of error and critical value.
Formula, recorded as scope and not yet verified against a primary source: xbar plus or minus t_(alpha/2, n-1) * s / sqrt(n) when sigma is unknown, or xbar plus or minus z_(alpha/2) * sigma / sqrt(n) when it is known. Finite population correction sqrt((N-n)/(N-1)) applies when the sample exceeds 5% of the population.
Status
This page is a stub. The calculator is not built, no figure on this page has been verified against the authority that sets it, and nothing here should be used to make a decision. The page exists so that the site structure is complete and so that articles can link this concept on first mention.
The stub carries noindex, nofollow and is excluded from the sitemap.