48. The Pearson correlation is calculated for a sample of n = 21 individuals. If a hypothesis test is used to determine whether the correlation is significant, which df value would be used for the significance test? a. df = 19 b. df = 20 c. df = 21 d. df = 22

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A: Given that n =32, alpha =0.2

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A:

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A: Given as,

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A: See the attachment...