What is the margin of error in statistics?
The margin of error is a statistic that expresses the amount of random sampling error in a survey's results.
How is the margin of error calculated?
It's calculated using the formula: Margin of Error = Z * (σ/√n), where Z is the Z-score, σ is the standard deviation, and n is the sample size.
What does a 5% margin of error mean?
A 5% margin of error means that if you were to conduct the survey multiple times, the results would fall within 5% of the true population value 95% of the time.
Can the margin of error be zero?
No, a margin of error of zero would imply perfect accuracy, which is impossible in sampling.
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