Use the given information to find the minimum sample size required to estimate the population proportion.
Margin of error: 0.028; confidence level: 99%; p and q unknown
We have given,
Preliminary estimate for proportion (Not Known) = 0.5
Margin of error =E=0.028
Level of significance = 1-0.99=0.01
Z critical value is (by using Z table) =2.576
|Sample size =2116|
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