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How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?

I was told last night that there would be an answer in a couple of hours?????????????????????? today is another day..............

  • stats -

    With the data you give here, I don't know how to answer your question. That may be the reason you did not get a response from others. Sorry.

  • stats -

    How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?

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