Math 1342 - Statistics: T-Test - Hypothesis Tests for Means (when sigma is NOT known)

Conducting hypothesis tests (finding the test statistic and P-value) for testing claims about population means when sigma is NOT known using the TI-83 or 84 calculator (T-Test). Also, using the t distribution table to find a -range of values- for the P-value by looking up where the test statistic would fall in the table. This second youtube video shows you how to find the P-value for a t-distribution test using the tcdf command in the calculator: (http://www.youtube.com/watch?v=mL9a-6mnbgU)