November 09, 2004
Student's t Distribution
Student's t distribution accounts for the fact that the sample variance of X is only an estimate of the true variance of X.
The critical t value is a bit larger than the z critical value, but the algebra is identical.
The t table is organized as follows:
Posted by bparke at 09:38 PM
Confidence Intervals and Hypothesis Tests
There are a limited number of cases that share a common structure.
We viewed 8.10 as both CI and HT.
From Thursday's class:
Posted by bparke at 09:27 PM