In a survey of 1000 people, 700 said that they voted in a recent presidential election....

In a survey of 1000 people, 700 said that they voted in a recent presidential election. Voting records show that 61% of eligible voters actually did vote. Construct a 96% confidence interval estimate of the proportion of people who say that voted.

Solutions

Expert Solution

We have given,

x=700
n=1000
Estimate for sample proportion=0.7
Level of significance is =1-0.96=0.04
Z critical value(using Z table)=2.054

Confidence interval formula is

=(0.6702, 0.7298)

orchestra answered 1 year ago

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