Fill in the Blank with the Appropriate Word or Phrase $\leq \alpha$

Multiple Choice

Fill in the blank with the appropriate word or phrase. When performing the Rank-sum test we reject the null hypothesis when ? .

A) the P-value $\leq \alpha$
B) the test statistic $\geq \alpha$
C) the test statistic $< \alpha$
D) the P-value > $\alpha$