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1. A previous county study found that 88% of respondents say traffic is their top concern. A county supervisor wants to conduct a new study

1. A previous county study found that 88% of respondents say traffic is their top concern. A county supervisor wants to conduct a new study to see if that proportion has changed. What is the minimum sample size if the county supervisor wants to be within an error of 3.7%? Assume the confidence level is 99%.

Z Value:

Minimum Sample Size:

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