SOLUTION: 4. Find the sample size required to achieve the given margin of error. 87% of the respondents agreed to lowering the income tax bracket. A. ± 4.5% B. ±0.6%

Algebra ->  Probability-and-statistics -> SOLUTION: 4. Find the sample size required to achieve the given margin of error. 87% of the respondents agreed to lowering the income tax bracket. A. ± 4.5% B. ±0.6%       Log On


   



Question 1011019: 4. Find the sample size required to achieve the given margin of error. 87% of the respondents agreed to lowering the income tax bracket.
A. ± 4.5%

B. ±0.6%

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the sample size required to achieve the given margin of error. 87% of the respondents agreed to lowering the income tax bracket.
A. ± 4.5%
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n = [z/E]^2*p*q
n = [1.514/0.045]^2*(1/2)^2 = 283
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B. ±0.6%
n = [2.512/0.006]^2*(1/2)^2 = 43,825
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Cheers,
Stan H.
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