SOLUTION: The Tennessee Tourism Institute (TTI) plans to sample information center visitors entering the state to learn the fraction of visitors who plan to camp in the state. Current estima

Question 1202821: The Tennessee Tourism Institute (TTI) plans to sample information center visitors entering the state to learn the fraction of visitors who plan to camp in the state. Current estimates are that 35% of visitors are campers.
How many visitors would you sample to estimate the population proportion of campers with a 95% confidence level and an error of 2%?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
proportion error=CI*sqrt(p*(1-p)/n)
0.02=1.96*sqrt((0.35*0.65/n))
square both sides
0.0004=3.8416*0.2275/n
n=2185 rounded upward
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