This lesson explains how to calculate and interpret the confidence interval for a population mean. It also looks at the effect on the confidence interval of changing the confidence level or sample size. It then explains how to find the error bound and sample mean if the confidence interval is already known, and how to find the sample size when given a specific margin of error.

Concepts

margin of error

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Additional Tags

calculate sample size, confidence interval, error bound, sample mean, z-score, tea statistics, confidence intervals

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Classroom Considerations

• Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)
• The intended use for this resource is Instructional|practice

Common Core

HSS-IC.B.4