Determine if two sets of data are significantly different from each other.
Background and nature of the task
The Student’s t-test is a robust, well-documented test that compares the means of two sets of data. The end result of the test is a single value of ‘t’, which is a measure of the extent to which the two sets of data overlap. Specific values of t are converted into a probability.
You should use the t-test:
- If you wish to test for difference in population means
- Provided that your measurements are at the interval level
- Provided that your measurements can be assumed to come from normally distributed populations
The first guide below provides an overview of statistical testing and assessing data. The second guide introduces the t-Test and how to use this application.
Duration and pattern of use
It should take between 1-3 hours to work through the application and accompanying materials.
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