The mayor of a town has proposed a plan for the annexation of an adjoining bridge. A political study took a sample of $1300$ voters in the town and found that $28\%$ of the residents favored annexation. Using the data, a political strategist wants to test the claim that the percentage of residents who favor annexation is above $25\%.$ Determine the decision rule for rejecting the null hypothesis, $H_0,$ at the $0\mathrm{.}05$ level.