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.

• 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.