One-sample test to compare sample mean or median to population estimate

Input Values


Note: This page now accepts data where either a comma (,) or point (.) is used as the decimal separator.

Compare a sample mean (or median) to a population estimate (default 0) using the 1-sample t-test (or sign test for medians). P-values can be calculated for one- or two-tailed comparisons, and are compared to a specified significance level.

Inputs are:

  • Population estimate of mean or median for comparison (default value is 0);
  • whether to use t-test (means) or sign test (medians);
  • specified significance level;
  • number of digits to display in results;
  • whether test is one-tailed or two-tailed; and
  • sample data.
Outputs include:
  • A summary of the data provided;
  • Confidence limits (based on specified significance level) for the sample mean or median; and
  • P values for the difference between sample mean/median and the specified value;
  • interpretation of the results; and
  • plots of the data distribution and confidence limits for mean/median.

Comparison value (mean or median):
Type of statistical test to be done?
1-sample t-test (Parametric data)
Sign test (Non-parametric data)
Significance level:
One-tailed Two-tailed
Digits after decimal pt:
Paste the data to be summarised in the space below and click on submit. Include a header row:
Download example data


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