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Statistically Significant

When someone says that the results of a poll or survey are ‘statistically significant,’ what they mean is that the results are within an accepted margin of error at an accepted confidence level.

For example, a statistically significant result of 75% + 5% margin of error at 95% confidence means that if the survey was repeated 100 times you could expect that 95 out of 100 times the response  would be between 70% and 80%.

When the results of a survey are said to be statistically significant, the margin of error and the confidence level should also be provided.

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