Question: Consider the regression model: testscore= 1 + 2 IQ+ 3 male+ 4 (IQmale)+u where, testscore = students' test score IQ = student's IQ male =

Consider the regression model:

testscore=1+2IQ+3male+4(IQmale)+u

where,testscore= students' test score

IQ= student's IQ

male= 1 if student is male, = 0 if student is female

Based on this model, how do we assess the statistical significance ofIQ?

A. Test H0 : 2 = 4 = 0 , Ha : H0 is false

B. TestH0 : 2 = 0 , Ha : H0 is false

C. First testH0 : 2 = 0 , Ha : H0 is false. If we do not reject, then we test,H0 : 4 = 0 Ha : H0 is false

D. First test H0 : 2 = 0 , Ha : H0 is false. If we reject, then we test,H0 : 4 = 0 Ha : H0 is false

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