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    Confidence interval for the mean

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    4. The owner of a business wanted to test how long employees were spending on the internet. A random sample of 49 employees showed a mean of 42 minutes and a standard deviation of 5.2 minutes. Find a 90% confidence for the mean.

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    4. The owner of a business wanted to test how long employees were spending on the internet. A random sample of 49 employees showed a mean of 42 minutes and a standard deviation of 5.2 minutes. Find a 90% confidence for M .

    90% Confidence interval

    Data
    Sample mean= ...

    Solution Summary

    This solution finds a confidence interval for the mean.

    $2.19

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