SOLUTION: Calculate the margin of error of the proportion if p̂ = 0.25, z = 1.96 and n = 200.

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Question 773929: Calculate the margin of error of the proportion if p̂ = 0.25, z = 1.96 and n = 200.
Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
Margin of error is: z*sqrt(p(1-p)/n)
= 1.96*sqrt((1/4)(3/4)/200) = 1.96*sqrt(3/3200) = 0.06
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