Paired sample t test
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One&-step formula for paired sample t&-test (t&-test for related data)
The t&-test for related data is frequently used by "non&-mathematicians" to test hypotheses formed in the context of psychology, geography and the social sciences among other subject areas. For the benefit of these students a "one&-step" version of the formula is [Equation goes here &- download the original to see it.] To explain the variables used in this formula. The test starts with values drawn from two samples &- these values are paired off because of some relationship between them. Let X1 represent one value in a pair and X2 represent the other. Then the difference between these two pairs is [Equation goes here &- download the original to see it.] This is where the d comes from in the above formula. There will be N pairs. We illustrate this with the same example of the main text. The symbol [Equation goes here &- download the original to see it.] means "sum" or "add up".
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Contents of
Paired sample t test
1 Paired sample t&-test (t&-test for related data)
2 One&-step formula for paired sample t&-test (t&-test for related data)
3 Example of paired sample t&-test (t&-test for related data)
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