Question: Consider a regression such as Table 4.1 where both experience and its square are included. A researcher wants to test the hypothesis that experience does
Consider a regression such as Table 4.1 where both experience and its square are included.
A researcher wants to test the hypothesis that experience does not affect mean wages and does this by computing the t-statistic for experience. Is this the correct approach? If not, what is the appropriate testing method?
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