Evaluate the t critical value with the help of given values:
Significance level = 0.01
Number of samples = 25.
Step 1: First of all, find the degree of freedom (Df) by taking the difference of 1 and the number of samples.
Df = 25 – 1
Df = 24
Step 2: Now take a one-tailed or two-tailed t-distribution table. Search the value of the degree of freedom in the leftmost column of the table.
Step 3: Now choose the value of the significance level in the topmost row of the t table.
Step 4: To calculate the t critical value, get the value where both degrees of freedom and significance level intersect.
t critical value = 2.4851