D. T-Tests
A t-test of a coefficient’s statistical significance is done the same way as in Chapter 14.
If t>t?/2, reject the null that ?=0 for that coefficient.
Reproducing my Excel output reveals that:
the coefficient on Age is insignificant. You can’t reject the null that that coefficient is non-zero. You CAN reject the null for the Alcohol coefficient. It is statistically significant.