Significance Tests For Difference Between Statistics
Introduction
- We are not interested in whether or not there is a difference between our samples (we can tell this by looking and we know that there will always be a difference)
- We ARE interested in making an inference from the samples
- Did we draw our two samples from the sample population, or is it more reasonable to assume they came from the same population with chance accounting for the differences
- Are there any differences between the populations.