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If researchers reported that, for a correlated-groups design, t (20) = 3.57, p

If researchers reported that, for a correlated-groups design, t(20) = 3.57, p<.05, you can conclude that

A. a total of 21 people participated in the study.

B. a total of 22 people participated in the study.

C. a total of 40 people participated in the study.

D. the number of participants cannot be determined.

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