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To calculate the Z test statistic: Compute the arithmetic mean of your sample. From this mean subtract the mean postulated in null hypothesis. Multiply by the square root of size sample. Divide by the population standard deviation. That's it, you've just computed the Z test statistic!
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This calculator computes data for both the one-sample Z-test and the two-sample Z-test. It also provides diagrams to visualize the results.
The easy-to-use hypothesis testing calculator gives you step-by-step solutions to the test statistic, p-value, critical value and more.
This tool helps you perform a one-sample Z test for hypothesis testing quickly and accurately. our calculator simplifies the process of determining p-values, critical value, test statistics, decision and Conclusion.
z-test calculator. Natural Language. Math Input. Extended Keyboard. Upload. Have a question about using Wolfram|Alpha? Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals.
Like the z-test function on the TI 84 for hypothesis tests with a known population standard deviation. Identify a type I or type II error.
Z-test Calculator Sample Mean: Population Standard Deviation: Sample Size: Population Mean: Alternative Hypothesis: Greater Than Less Than Not Equal To Level of Significance (α): Tail Type: One-Tailed Two-Tailed Calculate
