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    The Margin of Error

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    Assume that a random sample is used to estimate a population proportion p. Find the margin of error E that corresponds to the given statistics and confidence level:

    90% confidence; the sample size is 1600 of which 30% are successes

    The margin of error E= _____ (round to four decimal places as needed).

    © BrainMass Inc. brainmass.com June 4, 2020, 12:47 am ad1c9bdddf
    https://brainmass.com/statistics/confidence-interval/margin-error-359734

    Solution Summary

    The solution finds the margin of error that corresponds to the given statistics and confidence level.

    $2.19

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