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how do I (or can...

When I have all the coefficients for a logistic regression, how do I (or can I) express confidence intervals for the result? What I want to say, for example, is, "A student's chance of graduating from college, given X GPA, Y SAT score, Z gender, is between 75-80%." The formula I create from the coefficients just gives me a single estimate (e.g. 78% chance) rather than a range.

I'm using USDOE's online software to generate the regression, so I don't have a lot of flexibility in specifying the model, nor do I have access to the actual data.

Ideas?

I'm using USDOE's online software to generate the regression, so I don't have a lot of flexibility in specifying the model, nor do I have access to the actual data.

Ideas?

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