Learn how to determine when to use a z-Distribution or a t-Distribution, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge and skills.
Learn how to calculate t-scores. Study the t-score formula, discover examples of how to use the t-score equation, and identify applications of t-scores.
Learn to define what a t-test is. Discover the two-sample t-test and the unpaired t-test. Learn when to use a t-chart and how to find the t-value. See examples.
The t-score formula for an independent t-test is: t equals the mean of population 1 minus the mean of population 2 divided by the product of the pooled standard deviation and the square root of ...
The difference between a t -test and a z -test hinges on the differences in their respective distributions. As mentioned, a z-test uses the Standard Normal Distribution, which is defined as having ...
Understand what the t-distribution is and when to use the Student t-distribution. Learn the t-distribution formula and how degrees of freedom effects the t-curve.
Learn how to find the critical t-value for a given confidence level and sample size, and see examples that walk through sample problems step-by-step for you to improve your statistics knowledge.
