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17 lip 2024 · This Z-test calculator is a tool that helps you perform a one-sample Z-test on the population's mean. Two forms of this test - a two-tailed Z-test and a one-tailed Z-tests - exist, and can be used depending on your needs.
This Z-test calculator computes data for both one-sample and two-sample Z-tests. It also provides a diagram to show the position of the Z-score and the acceptance/rejection regions.
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.
The Z test checks if the expected mean is statistically significant, based on a sample average and a known standard deviation. The tool also compares the sample data to the standard deviation, calculates the test power, checks data for normality and draws a histogram and a distribution chart.
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Z-test Calculator Sample Mean: Population Standard Deviation: Sample Size: Population Mean: Alternative Hypothesis:. Level of Significance (α): Tail Type:. Calculate ...
Czytaj dalej, aby dowiedzieć się więcej o teście Z w statystyce, a w szczególności o tym, kiedy używać testu Z, jaki jest wzór na jego statystykę testową i jak ma się test Z do testu T studenta. Jako bonus podajemy kilka przykładów krok po kroku, jak wykonać test Z!
