A confidence interval is calculated as Point Estimate (+/-) 2*Margin of Error.

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Quizplus · Accepted Answer

A confidence interval is typically calculated as Point Estimate (+/-) Margin of Error, where the Margin of Error includes the critical value (which may not always be 2) times the standard error of the estimate. The "2" is specific to a 95% confidence level assuming a normal distribution, but other confidence levels use different critical values.

A Confidence Interval Is Calculated as Point Estimate (+/-) 2*Margin