A Mayor Is Concerned About the Percentage of City Residents $12 \%$

Multiple Choice

A mayor is concerned about the percentage of city residents who express disapproval of his job performance. His political committee pays for a newspaper ad, hoping that it will keep the disapproval rate below $12 \%$ . They will use a follow-up poll to assess the ad's effectiveness. The correct null and alternative hypotheses for testing this polls effectiveness are

A) $H _ { 0 } : p = 0.12 , H _ { A } : p > 0.12$
B) $H _ { 0 } : p > 0.12 , H _ { A } : p = 0.12$
C) $H _ { 0 } : p > 0.12 , H _ { A } : p < 0.12$
D) $H _ { 0 } : p = 0.12 , H _ { A } : p < 0.12$
E) $H _ { 0 } : p < 0.12 , H _ { A } : p = 0.12$