Critical T-values - MathCracker.com
mathcracker.com › t_critical_valuesSolution: First, the number of degrees of freedom is df = n - 1 = 31 - 1 = 30. Hence, for a two-tailed test, we need to find the value on the t-distribution with 30 degrees of freedom that has a probability of 0.01/2 = 0.005 on the right tail. Hence, the critical t-value is t_c = 2.750 tc =2.750.
Rechner
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T TABLE - T Score Table - T Critical Value
www.ttable.orgStudent t-Value Calculator. In order to calculate the Student T Value for any degrees of freedom and given probability. The calculator will return Student T Values for one tail (right) and two tailed probabilities. Please input degrees of freedom and probability level and then click “CALCULATE". Degrees of freedom: . Significance level: