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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 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.
These Z test formulas allow you to calculate the test statistic. Use the Z statistic to determine statistical significance by comparing it to the appropriate critical values and use it to find p-values.
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11 mar 2024 · The Z-test Calculator is a statistical tool designed to determine if there is a significant difference between sample and population means. It's ideal for researchers and students engaged in hypothesis testing and data analysis. Z-test Calculation Formula Explained.
This simple calculator allows you to calculate a standardized z -score for any raw value of X. Just enter your raw score, population mean and standard deviation, and hit "Calculate Z". Note: If you already know the value of z, and want to calculate p, this calculator will do the job.
