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P-Value Calculator

Estimate p-values from z-scores using the standard normal distribution. Supports one-tailed and two-tailed tests.

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Estimate p-value from z-score using the normal distribution

Z-Score Test Type

P-Value

0.0500

Marginally significant at α = 0.05

Significant at 0.10?

✅ Yes

Significant at 0.05?

✅ Yes

Significant at 0.01?

❌ No

Confidence Level

95.0%