The Management of a Water Park Has Concerns About the Chlorine

Multiple Choice

The management of a water park has concerns about the chlorine level of 0.4% mg/mL increasing to an unsafe level.The management tests the hypothesis that the park's chlorine proportions have remained the same.What are the null and alternative hypotheses?

A) H0: p = 0.004 HA: p > 0.004
B) H0: p = 0.004 HA: p ≠ 0.004
C) H0: p > 0.004 HA: p = 0.004
D) H0: p > 0.004 HA: p < 0.004
E) H0: p = 0.004 HA: p < 0.004