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The t distribution is symmetrical and has a mean of 0. A. True B. False 3. The value of alpha is determined by A. the

The t distribution is symmetrical and has a mean of 0.

A. True

B. False

3. The value of alpha is determined by

A. the size of the sample (n)

B. the magnitude of the treatment effect

C. alpha () is selected by the researcher

D. the standard deviation of the scores

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