The critical value t e obtained from the one or two tailed t-distribution table for the corresponding degrees of freedom at a stated level of confidence (99%, 98%, 97%, 96% 95%, etc or 0.01, 0.02, 0.03, 0.04, 0.05, etc) is further compared with t-statistic (t 0) estimated for the corresponding degrees of freedom ν to test if the null hypothesis (H 0) is accepted or rejected at a specified level of significance in one (left or right) tailed or two tailed t-test.
By supplying corresponding input values to this critical value for t-test calculator, users can estimate t e) for single independent sample mean (x̄), difference between two sample means (x̄ 1 - x̄ 2) & paired or related sample means (x̄) in statistical surveys or experiments. A two-tailed test has two critical values, one on each side of the distribution, which is often assumed to be symmetrical (e.g. t e is an important part of t-test to check if the results of statistical experiment is statistically significant. Generally, table (critical) value (t e) for student's t-test calculator is often related to the test of significance for very sample analysis. The critical value Z e obtained from the normal distribution table for the corresponding degrees of freedom at a stated level of confidence (99%, 98%, 97%, 96% 95%, etc or 0.01, 0.02, 0.03, 0.04, 0.05, etc) is further compared with the estimated value of Z-statistic (Z 0) to test if the null hypothesis (H 0) is accepted or rejected at a specified level of significance in one (left or right) tailed or two tailed Z-test. By supplying corresponding input values to this normal distribution critical values calculator, users can estimate Z e for single sample mean (x̄), single sample proportion (p), difference between two sample means (x̄ 1 - x̄ 2) & difference between two sample proportions (p 1 - p 2) to check if the results of statistical surveys or experiments statistically significant. 2.Scroll down to 1:Z-Test::: 3.Highlight Data or Stats Data : If you choose Data the calculator does all the work but you have to enter the mean from the null hypothesis ( 0), the population standard deviation (), and select two-tailed ( 6. 1.Press the STAT button and highlight TESTS.
Z e is an important part of Z-test to test the significance of large samples of normal distribution. Hypothesis Tests about a Mean (known): Z-Test Play Video. Generally, critical (table) value of (Z e) calculator is often related to the test of significance for large samples analysis.