Example 1
Sample Mean: 25; Population Mean: 20; Sample Standard Deviation: 5; Sample Size: 30
T-Statistic: 5.477225575
T-Statistic Calculator
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Calculates the t-statistic, used in hypothesis testing when the population standard deviation is unknown. This calculator helps determine if the difference between a sample mean and a population mean is statistically significant.
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How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Sample Mean, Population Mean, Sample Standard Deviation, and Sample Size in the units shown.
Step 2
Read T-Statistic in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Example 2
Sample Mean: 105; Population Mean: 100; Sample Standard Deviation: 15; Sample Size: 50
T-Statistic: 2.357022604
Example 3
Sample Mean: 52; Population Mean: 50; Sample Standard Deviation: 8; Sample Size: 40
T-Statistic: 1.58113883
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