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The p-value calculator calculates the p-value for Z score, T score, F score and Chi-square score. One sample Z-test, Two sample Z-test, One sample T-test, Two-Sample T (Welch's), Two-Sample T-test (equal), Chi-squared test, F-test and more.
A P-value calculator is used to determine the statistical significance of an observed result in hypothesis testing. It takes as input the observed test statistic, the null hypothesis, and the relevant parameters of the statistical test (such as degrees of freedom), and computes the p-value.
8 wrz 2024 · Our calculator determines the p-value from the test statistic and provides the decision to be made about the null hypothesis.
Easily calculate critical values for T-test, Z-test, Chi-Square , and F distributions with our p-value calculator. Accurate and user-friendly. Try it now!
The p-value calculator will output: p-value, significance level, T-score or Z-score (depending on the choice of statistical hypothesis test), degrees of freedom, and the observed difference. For means data it will also output the sample sizes, means, and pooled standard error of the mean.
This p-value calculator helps you to quickly and easily calculate the right-tailed, left-tailed, or two-tailed p-values for a given z-score. It also generates a normal curve and shades in the area that represents the p-value.
In a two-tailed test, the p-value is the probability of getting a value for the test statistic at least as unlikely as the value from the sample. To test the hypothesis in the p-value approach, compare the p-value to the level of significance. If the p-value is less than or equal to the level of signifance, reject the null hypothesis.
