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The t-test is one of many tests used for the purpose of hypothesis testing in statistics. •. Calculating a t-test requires three key data values. Calculate the t-statistic, which is given by T = ? d. SE(?d) . Under the null hypothesis, this statistic follows a t-distribution with n ? 1 degrees of Calculate the T-statistic, which is given by T = ?x1 ? ?x2. SE(?x1 ? ?x2) . Under the null hypothesis, this statistic follows a t-distribution with n1 +n2 ?2 Calculation of t: The one-sample t test requires the following statistical assumptions: A one-sample t test revealed that participants in the. confidence intervals for the difference in means, two-sample t-tests, Click the Run button to perform the calculations and generate the output.The calculation of the mathematical form (pdf) of the null sampling distribu- tion of any chosen statistic using the assumptions of a given model is beyond the. The t distribution is a probability distribution similar to the Normal distribution. It is commonly used to test hypotheses involving numerical data. Also, under the “bass-ackwards” approach of hypothesis testing, the way that the statistical test is actually conducted is by calculating the probability of the