One-Sample Z-Test — math calculators and step-by-step solvers
The One-Sample Z-Test Calculator tests a hypothesis about a population mean when the population standard deviation is known. Enter the sample values as a comma-separated list, the hypothesized mean, the population sigma (optional), and a significance level of 0.05 or 0.01. The tool returns the sampl
Category: Statistics
About this tool
What Is One-Sample Z-Test? One-Sample Z-Test The One-Sample Z-Test Calculator tests a hypothesis about a population mean when the population standard deviation is known. Enter the sample values as a comma-separated list, the hypothesized mean, the population sigma (optional), and a significance level of 0.05 or 0.01. The tool returns the sample mean, the z-statistic, the two-tailed p-value, and the decision at the chosen level. Use it for homework and research when you need a formal test of a claim about a mean.. How to Use Make sure you understand the formula or method this tool uses. Enter your values in the correct fields with compatible units. Review the result, compare it with expected values, and use the related tools if needed. Frequently Asked Questions How do I use One-Sample Z-Test? Enter the required data in the appropriate fields and the tool will display the result immediately.