A poll of 1285 adult Americans reveals that 573 of the voters surveyed, voted for the Republican candidate for president. At the .05 level of significance, test the claim that more than half of all voters voted for the Republican candidate.

In this case the alternative Hypothesis is,
O Ha: p = 0.50
O Ha: p < 0.50
O Ha: p > 0.50
O Ha: p ≥ 0.45