Free Sample Size Reliability for μ Calculator - Given a population standard deviation σ, a reliability (confidence) value or percentage, and a variation, this will calculate the sample size necessary to make that test valid.

This calculator has 3 inputs.

This calculator has 3 inputs.

- confidence interval
- a range of values so defined that there is a specified probability that the value of a parameter lies within it.
- reliability
- the overall consistency of a measure
- sample size
- measures the number of individual samples measured or observations used in a survey or experiment.
- sample size reliability for μ