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The following examples show how to calculate a p-value from a z-score by hand using a z-table. Suppose we conduct a left-tailed hypothesis test and get a z-score of -1.22. What is the p-value that corresponds to this z-score? To find the p-value, we can simply locate the value -1.22 in the z table:
Easy to use calculator for converting a Z score to P-value using the cumulative probability density function (cumulative PDF) of the normal distribution. Convert Z to P, calculate P-value from Z-score of a normally distributed variable.
You can use this p-value calculator to 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.
You will never again have to wonder how to find the p-value, as here you can determine the one-sided and two-sided p-values from test statistics, following all the most popular distributions: normal, t-Student, chi-squared, and Snedecor's F.
Calculator to find out the z-score of a normal distribution, convert between z-score and probability, and find the probability between 2 z-scores.
How to Calculate the P-Value of a T-Score in R; How to Calculate the P-Value of a Z-Score in R; How to Find a P-Value from a Z-Score in Python; How to Find a P-Value from a t-Score in Python; How to Find the Z Critical Value on a TI-84 Calculator; Here is How to Find the P-Value from the…
Use our free P-Value Calculator to determine the statistical significance of your data. Input your Z-score, select your test type (one-tailed or two-tailed), and choose your significance level. The calculator will give you the P-Value and explain whether the null hypothesis can be rejected.
This tutorial illustrates several examples of how to find the p-value from a z-score in Excel using the function NORM.DIST, which takes the following arguments: NORM.DIST (x, mean, standard_dev, cumulative)
Calculator to compute p-value from Z-score or Z-score from p-value for a normal distribution. It also provides a diagram illustrating the area of the p-values.
The p-value calculator calculates the p-value for Z score, T score, F score and Chi-square score. If you don't have the score you may use one of the following calculators that will compute the score and the p-value: