Enter the sample mean, the population mean, standard deviation, and sample size into the calculator. The calculator will display the statistical significance using type 1 error.

## Statistical Significance Formula

The following formula used type 1 error to determine statistical significance.

Z = (x – u) / (std / sqrt(n))

- Where Z is the statistical significance
- x is the sample mean
- u is the population mean
- std is the standard deviation
- n is the sample size

## Statistical Significance Definition

A statistical significance is a measure of how closely a sample set follows the data of a larger population

## Statistical Significance Example

How to calculate statistical significane

**First, determine the sample size**Determine a proper sample size to be used for analysis.

**Next, calculate the sample mean**Calculate the mean of the sample.

**Next, calculate the population mean**Calculate the mean of the entire population.

**Next, determine the standard deviation**This is the standard deviation of the population, not the sample.

**Finally, calculate the statistical significance.**Calculate Z using the formula above.

## FAQ

**What is statistical significance?**

Statistical significance is a measure of how closely a sample of data matches with a population of data.