In the last municipal election, a sample of 350 registered voters showed that 85 voted for the incumbants. Find a 98% confidence intervalestimate for the proportion of all voters voting for the incumbants.
p= 0.2429 =85/350 =proportion of those who voted for the incumbents
q=1-p= 0.7571 = 1 – 0.2429 =proportion of those who did not vote for the incumbents
Population proportion is estimated using Normal distribution