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T-Test Calculator
A t-test calculator performs any statistical hypothesis test in which the test statistic follows a Students t distribution if the null hypothesis is supported.
Code to add this calci to your website  
Just copy and paste the below code to your webpage where you want to display this calculator.
Formula:
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T-test calculation is most commonly applied when the test statistic would follow a normal distribution if the value of a scaling term in the test statistic were known. When the scaling term is unknown and is replaced by an estimate based on the data, the test statistic (under certain conditions) follows a Students t distribution.
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