Use this P to Z calculator to easily convert P-values to Z-scores (standard scores) and see if a result is statistically significant. Supports one-tailed and two-tailed p-values. Detailed information about what a Z-score is.

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.

This online calculator calculates the z score from the p-value. Of course, there are some known values, like everybody (well, not everybody, but anyway) knows that the z score for 0.05 significance level is roughly 1.64. However, the calculator below can calculate the z score for an arbitrary p-value.

Free Standard Normal Distribution Calculator - find the probability of Z using standard normal distribution step-by-step

P Value from Z Score Calculator. This is very easy: just stick your Z score in the box marked Z score, select your significance level and whether you're testing a one or two-tailed hypothesis (if you're not sure, go with the defaults), then press the button!

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

For any given value of z, this page will calculate the respective one-tailed probabilities of —z and +z; the two-tailed probability of±z; and the proportion of the normal distribution falling between —z and +z. To proceed, simply enter the value of z in the designated cell and click "Calculate."

Use this calculator to compute a two-tailed P value from any Z score, T score, F statistic, correlation coefficient (R), or chi-square value. Once you have obtained one of these statistics (from a publication or even another program) the P value helps interpret its statistical significance.

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.

2021年5月7日 · The following examples show how to calculate a p-value from a z-score by hand using a z-table. Example 1: Find P-Value for a Left-Tailed Test Suppose we conduct a left-tailed hypothesis test and get a z-score of -1.22 .