We would like to study how a student's performance on a standardized test (the SAT) is related to GPA. We therefore run a new version of the regression including data on SAT performance (Model 4), and get the following (coefficients only shown):

//Model 4

. regress cumgpa female white fem_white sat

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cumgpa | Coef. Std. Err. t P>|t| [95% Conf. Interval]

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female | .0908593 .1135674 0.80 0.424 -.1321572 .3138758

white |-.0842034 .0617105 -1.36 0.173 -.2053865 .0369798

fem_white | .3407492 .1265911 2.69 0.007 .0921576 .5893408

sat | .0013194 .0001423 9.27 0.000 .00104 .0015989

_cons | 1.198404 .1155707 10.37 0.000 .9714534 1.425354

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What is the t-statistic for the coefficient on SAT?