Is this statistically significant?

15. The researchers decided to drop systolic blood pressure from their model, but add an interaction term between sex and insurance type. The results are as follows: 3'; = 55.5 + 1.3x1 + 6.8x2 + 1.7x3 + 17.7x4 + 2.0x5 where x1 = 1 for female (0 for male); x2=1 for private insurance, 0 for non-private; X3=x1*x2; x4 =1 for black, x5 =1 for other racial identity. - The standard error for the slope of the interaction term (X3) is 2.1. Is the (rIIce-djusted) relationship between wait times Ind insurance type statistically signicantly modified by sex? b. No