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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.
- One- and Two-Tailed Tests
The t critical value for the two-tailed test is +/- 2.086...
- One- and Two-Tailed Tests
29 Απρ 2022 · 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.
The resulting value is your critical value. Example: Two-Tailed Test with df = 10 and P = 0.05. For a two-tailed test with 10 degrees of freedom and a significance level of P = 0.05, look for the row labeled "10" and the column labeled "0.05" in the two-tailed section. The critical value is approximately 2.228. Interpreting the Critical Value
Tables T-11. Table entry for p and C is the critical value t∗ with probability p lying to its right and probability C lying between t∗ and t∗. −.
Critical values of t for two-tailed tests Significance level (a) Degrees of freedom 20 22 23 24 29 30 40 50 60 70 80 100 1000 Infinite 0.2 3.078
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 ... Devore Probability Statistics Engineering Sciences Author: Ulisses U. dos Anjos