Use the Following Information for Questions

Short Answer

Use the following information for questions:
According to a recent survey, teenagers who eat with their families at least five times a week are more likely to get better grades in school and much less likely to have substance abuse problems. Two groups of teenagers were studied: those who eat with their families at least five times a week and those who don't. The difference in school grades and the difference in likelihood to have substance abuse problems were both found to be statistically significant.
-When comparing the likelihood to have substance abuse problems between the two groups, what does statistical significance mean?