SOLUTION: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to be 52.1%. What is the probability that in a random sample of 460 voters, less t

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Question 1177268: The proportion of eligible voters in the next election who will vote for the incumbent is assumed to be 52.1%. What is the probability that in a random sample of 460 voters, less than 49.3% say they will vote for the incumbent?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
μ = p = 52.1%
n = 460, x̄ = .493


 z =  z+=blue+%28.493+-+.521%29%2Fsqrt%28blue%28.521%28.479%29%2F460%29%29 = -1.2021
P(z  ≤ - 1.2021) = .1147  0r 11.47%

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