The Sign Test is a nonparametric test that determines the probability of a sample median being equal to a hypothesized value. SADA will either already have or prompt you for the decision criterion depending on the analysis environment that you are in. A sign test is performed by comparing each value to the decision criterion, and then recording the number of exceedances, ties, and the number of sample values below the decision criterion and compare them to a significance value that is dependent on the alpha.

After selecting Sign Test vs. Decision Criteria, SADA asks the user to define a decision criteria.

Press OK and SADA presents the results of the one-sided sign test. What do these results mean?