Enter your sample size and confidence level into the calculator to determine your critical value.
Critical Value Calculation Formula
The following formula is used to calculate the critical value for a given confidence level and sample size.
Critical Value = Z / √n
Variables:
- Critical Value (r) is the value you need to compare against your test statistic.
- Z is the z-score associated with the desired confidence level.
- n is the sample size.
To calculate the critical value, divide the z-score by the square root of the sample size.
What is Critical Value Calculation?
Critical value calculation