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18: Confidence Interval Calculator for a Mean With Statistics (Sigma Unknown)

18: Confidence Interval Calculator for a Mean With Statistics (Sigma Unknown)

Last updated

Dec 18, 2023
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- 17: Observe the Relationship Between the Binomial and Normal Distributions
- 19: Visually Compare the Student's t Distribution to the Normal Distribution

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CONFIDENCE INTERVAL Calculator WITH STATISTICS

Fill in the sample size (n), the sample mean ( $\bar{x}$ ), the sample standard deviation (s), and the confidence level (CL). Write the confidence level as a decimal. For example, for a 95% confidence level, enter 0.95 for CL. Then hit Calculate and assuming the population is normally distributed, the confidence interval will be calculated for you.

$\sigma$ Unknown

$\sigma$ Known

$\bar{x}$ :

CL:

Lower Bound

Upper Bound

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