Observed T Value Formula. The formula to compute the observed t value when using the one sample t test is. Since p 0 0128 0 01 alpha or 1 3 is greater than 1 the decision turned out to be not to reject.
Enter the degrees of freedom df enter the significance level alpha α is a number between 0 and 1. T test value is calculated using the formula given below. Since p 0 0128 0 01 alpha or 1 3 is greater than 1 the decision turned out to be not to reject.
T observed sample mean population mean standard deviation mean.
Using the formula for the t statistic the calculated t equals 2. The confidence level is 1 α. T observed sample mean population mean standard deviation mean. You can use this t value calculator to calculate the student s t value based on the significance level and the degrees of freedom in the standard deviation.
