P-Value Calculator
Calculate the p-value from a z-score for hypothesis testing. Supports one-tailed and two-tailed tests.
How to Use This P-Value Calculator
- 1Enter your test statistic (z-score)
- 2Set the significance level (default 0.05)
- 3Choose one-tailed or two-tailed test
- 4Click Calculate to see the p-value and significance
Formula
P-value is calculated from the cumulative distribution function of the standard normal distribution based on the z-score and tail type.
Frequently Asked Questions
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About P-Value Calculator
A p-value calculator for statistical hypothesis testing. Enter your test statistic (z-score) and significance level to determine whether to reject the null hypothesis. Supports one-tailed and two-tailed tests.