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23: Confidence Interval for a Mean (With Statistics) Calculator

23: Confidence Interval for a Mean (With Statistics) Calculator

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CONFIDENCE INTERVAL CALCULATOR WITH STATISTICS (SIGMA KNOWN)

Fill in the sample size (n), the sample mean ( $\bar{x}$ ), the population standard deviation ( $\sigma$ ), 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.

$\bar{x}$ :

CL:

$\sigma$ :

Lower Bound

Upper Bound

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