Question 1195600
95% half interval is z(SE)=1.96*sqrt(0.6396*0.3604)/111=z*0.0456=0.0893 
Exact SE is sqrt ((71/111)(40/111)/111), but it's the same here.  
the point estimate is 0.6396
the interval is (0.5503, 0.7289) or (0.55 ,0.73) or 0.55 < p < 0.73