1-Sample Z-Test Calculator

Calculate Z-score and P-value for a single sample

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About 1-Sample Z-Test Calculator

A one-sample Z-test is used to determine whether there is a significant difference between the mean of a sample and the population parameter. You can input the sample mean, population mean, population standard deviation, sample size, significance level, and whether the test is one-tailed or two-tailed.

1-Sample Z-Test Calculator Features

  • Support for left-tailed, right-tailed, and two-tailed tests
  • Automatic critical value calculation
  • Clear interpretation of significance

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