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This t-distribution table provides the critical t-values for both one-tailed and two-tailed t-tests, and confidence intervals. Learn how to use this t-table with the information, examples, and illustrations below the table.
Find in this t table (same as t distribution table, t score table, Student’s t table) t critical value by confidence level & DF for the Student’s t distribution.
Student’s t table is also known as the t table, t-distribution table, t-score table, t-value table, or t-test table. A critical value of t defines the threshold for significance for certain statistical tests and the upper and lower bounds of confidence intervals for certain estimates.
What is the t-Distribution Table? The t-distribution table is a table that shows the critical values of the t distribution. To use the t-distribution table, you only need to know three values: The degrees of freedom of the t-test; The number of tails of the t-test (one-tailed or two-tailed)
This T table contains both one-tailed T-distribution and two-tailed T-distribution, degrees of freedom up to 1000, and a confidence level up to 99.9%. Use this T-Distribution Table to lookup T critical value for confidence level & degrees of freedom for one tail & two-tails.
Table V Critical Values for the t Distribution. This table contains critical values associated with the t distribution, ta, defi ned by the degrees of freedom and a. a.
The table reports the critical value t* (or z*) corresponding to the indicated Confidence Level or Right-tail Probability.
Appendix Tables A-9 Table A.5 Critical Values for t Distributions v.10 .05 .025 .01 .005 .001 .0005 1 3.078 6.314 12.706 31.821 63.657 318.31 636.62 2 1.886 2.920 4.303 6.965 9.925 22.326 31.598 3 1.638 2.353 3.182 4.541 5.841 10.213 12.924
Student's T Distribution Critical Values 0.400 0.300 0.250 0.200 0.150 0.100 0.050 0.025 0.020 0.010 0.005 0.003 0.001 1 0.325 0.727 1.000 1.376 1.963 3.078 6.314 12.706 15.895 31.821 63.657 127.32 318.31
Table entry for p and C is the critical value t* with probability p lying to its right and probability C Probability p lying between –t* and t*.