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A clinical trial is run to evaluate the effectiveness of a new drug to prevent preterm delivery. A total of n=250 pregnant women agree to participate and are randomly assigned to receive either the new drug or a placebo and followed through the course of pregnancy. Among 125 women receiving the new drug, 24 deliver preterm and among 125 women receiving the placebo, 38 deliver preterm. Is there a significant difference in the proportions of women who deliver preterm who are taking the new drug verse the placebo? Run the appropriate test at a 5% level of significance.

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