According to a recent poll, 40.5% of people aged 25 years or older in the state of Massachusetts have a bachelor's degree or higher. The poll also reported that 30.0% of people aged 25 years or older in the state of Delaware have a bachelor's degree or higher. The poll sampled 354 residents of Massachusetts and 210 residents of Delaware. The data was calculated to be significant at the 0.013 level. Determine the meaning of this significance level.