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Suppose a researcher is estimating the proportion of fish in the Rogue River showing signs of disease. They randomly sample 87 fish in various locations

Suppose a researcher is estimating the proportion of fish in the Rogue River showing signs of disease. They randomly sample 87 fish in various locations on the river and find that 11 of them show signs of disease.

Calculate the 95% confidence interval for p, the proportion of all fish is the Rogue River showing signs of disease.

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