SOLUTION: Assume that the population proportion is .55. Compute the standard error of the proportion, σ ( p ¯ ), for sample sizes of 100, 200, 500, and 1000 (to 4 decimals).

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Question 516745: Assume that the population proportion is .55. Compute the standard error of the proportion, σ ( p ¯ ), for sample sizes of 100, 200, 500, and 1000 (to 4 decimals).

Answer by stanbon(75887) About Me  (Show Source):
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Assume that the population proportion is .55. Compute the standard error of the proportion, σ ( p ¯ ), for sample sizes of 100, 200, 500, and 1000 (to 4 decimals).
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s(phat) = sqrt[0.55*0.45/100] = 0.0497
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s(phat) = sqrt(0.55*0.45/200) = 0.0352
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etc.
Cheers,
Stan H.