# Difference in Means Calculator
The Difference in Means calculator allows you to test for a statistically significant difference between two population means drawn from independent samples. The means are assumed to come from normally distributed samples of distinct populations with equal variances.
Typical uses of a T-test for two independent samples might include testing for differences in test scores among students in two separate classrooms or the average response to a given stimulus for two study groups.
To determine if the difference is significant follow these steps:
- Plug in the means that you wish to test.
- Plug in the sample size for each of the independent groups.
- Enter the standard deviation of each group.
- Select a confidence level.
- Click on Calculate.
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