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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
---
---
Critical Value
0
Conclusion
95% Confidence Interval
[0, 0]
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