Sketch the rejection region corresponding to level of significance of 0.05 ??
"A pollster states that a majority of a city's voters will vote for a new stadium. A random sample of 400 voters found that 53% would vote for the new stadium. Sketch the rejection region corresponding to level of significance 0.05 and include any critical value(s) in this sketch."

I have found so far that n=400, σ= 9.98, α =0.05, p=0.53, q =0.47.. where to from here? I can't seem to figure out the degree of freedom and I think that's the next step.

Question

Sketch the rejection region corresponding to level of significance of 0.05 ?? 
"A pollster states that a majority of a city's voters will vote for a new stadium. A random sample of 400 voters found that 53% would vote for the new stadium. Sketch the rejection region corresponding to level of significance 0.05 and include any critical value(s) in this sketch."

I have found so far that n=400, σ= 9.98, α =0.05, p=0.53, q =0.47.. where to from here? I can't seem to figure out the degree of freedom and I think that's the next step.