Many times in statistical analysis you may need to know if a population mean is significantly different from some reference value. This is a type of -test if the population variance is not known. The Hypothesis Testing Package, which is included with Mathematica, can be used to test hypotheses for population means.
Load the Hypothesis Testing Package:
Use MeanDifferenceTest if you need a test to decide whether the difference between two population means differs significantly from an assumed value. In this case, the null hypothesis is that the population means are equal (differ by 0):
Tests can also be done for paired comparisons of datasets. This can be done by using MeanTest on the pairwise differences: