\"\"

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The formula for margin of sampling error is \"\", Where n is size of the sample.

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The given values \"\".

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\"\"    (Substitute \"\")

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\"\"          (Subtract: \"\")

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\"\"                 (Multiply: \"\")

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\"\"               (Divide: \"\")

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\"\"                         (Use a calculator: \"\")

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The margin of error is about \"\". \"\"

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The margin of error is about \"\".