![]() ![]() The t table for two-tailed probability is given below. In this case, the t critical value is 2.132. Pick the value occurring on the intersection of mentioned row and column. Also, look for the significance level α in the top row. Look for the degree of freedom in the most left column. Subtract 1 from the sample size to get the degree of freedom.ĭepending on the test, choose the one-tailed t distribution table or the two-tailed t table below. However, if you want to find critical values without using t table calculator, follow the examples given below.įind the t critical value if size of the sample is 5 and significance level is 0.05. The t distribution table (student t test distribution) consists of hundreds of values, so, it is convenient to use t table value calculator above for critical values.
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