In a Hypothesis Test Involving the Population Proportion, Which of the Following

Multiple Choice

In a hypothesis test involving the population proportion, which of the following would be an acceptable formulation?

A) H₀ : p̂ = .25 vs H_a : p̂ < .25 .
B) H₀ : p̂ = .25 vs H_a : p̂ > .25 .
C) H₀ : p̂ = .25 vs H_a : p̂ ≠  .25 .
D) H₀ : p̂ = .25 vs. H_a : p̂ < .25 and H₀ : p̂ = .25 vs. H_a : p̂ > .25 are acceptable
E) none of these