The director of research and development is testing a new drug. She wants to know if there is evidence at the 0.02 level that the drug stays in the system for more than 339 minutes. After performing a hypothesis test, she decides to reject the null hypothesis. What is the conclusion?
A: There is sufficient evidence at the 0.02 level of significance that the drug stays in the system for more than 339 minutes.
B: There is not sufficient evidence at the 0.02 level of significance that the drug stays in the system for more than 339 minutes.