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

Question

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

Quizplus · Accepted Answer

The null hypothesis (H0) is that the proportion of chlorine remains the same, which is represented by p = 0.004. The alternative hypothesis (HA) is that the chlorine level has increased to an unsafe level, which means the proportion of chlorine is greater than 0.004. Therefore, the correct choice is A.

The Management of a Water Park Has Concerns About the Chlorine