A randomized, double-blind trial compares the efficacy of Drug X to placebo in reducing systolic blood pressure. The primary outcome is the mean change in systolic blood pressure after 8 weeks. Investigators set α = 0.05 a priori and enroll 150 patients per group. The statistical comparison yields a p-value of 0.04 for the difference in mean systolic blood pressure reduction between the Drug X and placebo groups. Which of the following best describes the p-value obtained?