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    a confidence interval

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    Given the following information, calculate a confidence interval using a 95 percent confidence level: sample proportion =.4, standard error of the proportion =.05, and sample size =100.

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    The mean is 0.4 and the standard error is 0.05
    <br>because we only know the sample mean, we use t-stat to ...

    Solution Summary

    This job calculates a confidence interval.