Question

what are the difference scores with respect to the correlated-group T Test and how are different...

what are the difference scores with respect to the correlated-group T Test and how are different scores C's
calculated?

And when calculating the correlated-groups T-Test, why does the numerator for the equation involve subtracting zero from the mean of the difference score?

Correction : What are difference scores with respect to the correlated-group T- Test and how are difference scores calculated?

Math   Statistics-And-Probability   
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