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Anybody know what it means when the p-value for X in an Excel regression ouput isn't something like ".0263," but instead is "3.9081E-86"?

By the way, this is for one independent and one dependent variable--268 observations of each--which are "high school class rank" and "SAT score." The R Square is .767

Thanks a bunch.

rtw0501

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If my answer was helpful, feel free to accept it by hitting the checkmark next to it. :) – phoebus Nov 23 '09 at 3:47
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The E indicates scientific notation. 3.9081E-86 is 3.9081 x 10^(-86).

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Phoebus, indeed you illuminate the shadows of my poor humanities education. Duh. You're the greatest--I tell everybody. rtw0501 – rtw0501 Nov 22 '09 at 22:45
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Furthermore, a value like the one you have found simply tells that you have used a very large number of observations. Do not put too much importance on it.

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