T-test Definition and 20 Threads

The t-test is any statistical hypothesis test in which the test statistic follows a Student's t-distribution under the null hypothesis.
A t-test is the most commonly applied when the test statistic would follow a normal distribution if the value of a scaling term in the test statistic were known. When the scaling term is unknown and is replaced by an estimate based on the data, the test statistics (under certain conditions) follow a Student's t distribution. The t-test can be used, for example, to determine if the means of two sets of data are significantly different from each other.

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  1. TytoAlba95

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  2. Conservation

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  3. Vital

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  4. T

    I Is the Definition of Unpaired t-test in My Book Correct?

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  5. M

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  6. ElijahRockers

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  7. S

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  9. M

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  10. S

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  11. D

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  12. L

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  13. C

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  14. R

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  15. S

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  16. N

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  17. M

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  18. C

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  19. A

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  20. B

    Calculating a Paired t-Test Equation

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