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Critical Z-values Calculator
<-- Enter α
For t-distribution critical values, use our
t-value distribution calculator
For F-distribution critical values, use our
F-value distribution calculator
For Χ
2
-distribution critical values, use our
chi-square distribution calculator
How does the Critical Z-values Calculator work?
Given a probability from a normal distribution, this will generate the z-score critical value. Uses the NORMSINV Excel function.
This calculator has 1 input.
What 1 formula is used for the Critical Z-values Calculator?
Z = (x - μ)/σ/√n
For more math formulas, check out our
Formula Dossier
What 3 concepts are covered in the Critical Z-values Calculator?
area
Number of square units covering the shape
critical value
a point on the distribution of the test statistic under the null hypothesis that defines a set of values that call for rejecting the null hypothesis.
critical z-values
Example calculations for the Critical Z-values Calculator
a=0.03
alpha=0.05
NORMSINV(0.95)
Critical Z-values Calculator Video