Free One-Sample z-Test Calculator

Select Test:
Two-Tailed Test
One-Tailed Test

Select Alpha Level:
.05
.01

Number of Rows:
[10][30][50][100][250]

Population Mean: Population Standard Deviation:
Group A
Descriptive Statistics
Mean Standard Deviation n
Group A 0 0 0
One Sample z-Test
z-Statistic 0 Result
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Critical Value 0 Conclusion
95% Confidence Interval [0, 0]

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