Question 1180502
np is 160*0.57=91.2, That is mean
np(l-p)=91.2*0.43=39.216 That is variance
sort(39.216)=6.26. That is sd
z for 99 is (99-91.2)/6.26. The continuity correction factor is not applied here, since the first number must be at least 99.
=1.246
probability z > 1.246 is 0.1064