7.25. For the 2004 GSS, Table 7.15 shows software output for evaluating the number of hours of TV watching per day by race.

TABLE 7.15 Race N Mean StDev SE Mean Black 101 4.09 3.63 0.3616 White 724 2.59 2.31 0.0859 Difference = mu (Black) - mu (White)

Estimate for difference : 1.50 957, CI for difference: (0.77, 2.23)

T-Test of difference = 0: T-value = 4.04, P-value = 0.000