The two-sample t-test is one of the most commonly used hypothesis tests in Six Sigma work. It is applied to compare the average difference between two groups. You use it to determine if the ...

Calculator for a two-sample pooled-variance t-test: Two-Sample t-Test Calculator (Pooled-Variance) This web calculator conducts a pooled-variance t-test for a difference between two populations' means ...

In the Two-Sample Test for Proportions task, you can determine whether two probabilities are the same. The data analyzed in this example are taken from a study measuring the accuracy of two computer ...

There are two distinct types of t test: the one sample t test and two sample t test. The two sample t test compares two groups with respect to their mean values, whereas the one sample test compares ...

Course Topics This short course provides an overview of statistical analyses useful for comparing the means for one or more samples. The statistical training will include the discussion of the one ...

This article considers the problem of comparing two independent groups in terms of some measure of location. It is well known that with Student's two-independent-sample t test, the actual level of ...