This video demonstrates how to perform an independent samples t-test using Welch’s t-test to compare two group means. We walk through the complete hypothesis testing procedure: defining the null and alternative hypotheses, calculating the standard error for unequal variances, and determining the Welch-Satterthwaite degrees of freedom. Finally, we show how to find the p-value range using a t-distribution table to decide whether to reject the null hypothesis at α=0.05.
## Quizzes
https://www.youtube.com/post/UgkxpM4pGLBCyRAhkwdxQ6gaCYYqW-NK-LDZ
https://www.youtube.com/post/UgkxOL-69F8V3MLClIOHBPYJ8fCvJ0mSUnW0
https://www.youtube.com/post/UgkxsgUF0dXrcJHpD94P8gutcAtRN7jLZ4W9
https://www.youtube.com/post/UgkxYUTweMEAq4SIsKJj673UzYs6WNkuZk1f
