Suppose you have four classifications: freshmen (f), sophomore (so), junior (j), and senior (se). You construct a dummy variable, one for each classification that takes on the value of (1) should that classification be true for that observation and 0 otherwise. Further assume that you estimate the following model: E[GPA]= .5*ACT+.1*So+.2*J+.1*Se What is the omitted category? Enter 1 for Freshmen, 2 for Sophomores, 3 for Juniors, 4 for Seniors.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Suppose you have four classifications: freshmen (f), sophomore (so), junior (j), and senior (se). You construct a dummy variable, one for each classification that takes on the value of (1) should that classification be true for that observation and 0 otherwise.

Further assume that you estimate the following model:

E[GPA]= .5*ACT+.1*So+.2*J+.1*Se

What is the omitted category?

Enter 1 for Freshmen, 2 for Sophomores, 3 for Juniors, 4 for Seniors.

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