A researcher is conducting a study of charitable donations by surveying a simple random sample of households in a certain city. The researcher wants to determine whether there is convincing statistical evidence that more than 50 percent of households in the city gave a charitable donation in the past year. Let p represent the proportion of all households in the city that gave a charitable donation in the past year. Which of the following are appropriate hypotheses for the researcher? Responses H0: p = 0.5 and Ha: p > 0.5 H 0 : p = 0.5 and H a : p > 0.5 H0: p = 0.5 and Ha: p ≠ 0.5 H 0 : p = 0.5 and H a : p ≠ 0.5 H0: p = 0.5 and Ha: p < 0.5 H 0 : p = 0.5 and H a : p < 0.5 H0: p > 0.5 and Ha: p ≠ 0.5 H 0 : p > 0.5 and H a : p ≠ 0.5 H0: p > 0.5 and Ha: p = 0.5