Question 1162361
The prior mean is np=127*.22=27.94
sd is sqrt(V) and V=np(1-p)=27.94*.78=21.79
so sd is 4.67

fewer than 33, use 32.5 with continuity correction factor
z<(32.5-27.94)/4.67
z< 0.98
probability is 0.8365

Can use binomial to check the probability 32 or fewer voted, the exact value, which is 0.8360.