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The following table gives the results of a study investigating the association between low birth weight and the race of the mother. Race Low birth

The following table gives the results of a study investigating the association between low birth weight and the race of the mother.

Race Low birth weight Normal birth weight

Black 11 15

Other 25 42

White 23 73

Provide a 95% confidence interval for the prevalence of low birth weight for Black mothers. What assumptions must you make before estimating the margin of error?

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