Claim: d 0; = 0.05. Sample statistics: d = 17.5, s d = 4.05,

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Claim: μd ≠ 0; α = 0.05. Sample statistics: d̅ = 17.5, sd = 4.05, n = 37

Test the claim about the mean of the differences for a population of paired data at the level of significance α. Assume the samples are random and dependent, and the populations are normally distributed.

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