Paired t-Testing

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Using the information from the previous page, we can conduct a t-test using the following formula:

The degrees of freedom of a paired t-test is equivalent to the number of pairs minus one:

Degrees of Freedom = n - 1

What is the Null Hypothesis ?

M_d = the mean of the differences between populations 1 and 2.

Case Example: Human Growth Hormone and UCLA Students

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