Testimate Guide
List of tests
You choose which test to perform using the menu in testimate. Which tests appear in the menu depends on what attributes are in the two boxes. More precisely, the menu contents depend on what kind of attributes are in the two boxes: numeric or categorical.
The following table list all of the tests testimate knows how to do depending on the attribute types. Remember that, where it makes sense, outcome attributes go on the left:
| numeric on left | categorical on left | |
|---|---|---|
| nothing on the right |
test mean (\(t\)) | test proportion (\(z\)) test proportion (binomial) goodness of fit (\(\chi^2\)) |
| numeric on the right |
difference of means (\(t\), two sample) paired difference (\(t\)) linear regression correlation |
logistic regression |
| categorical on the right |
difference of means (\(t\), grouped) one-way ANOVA (\(F\)) |
difference of proportions (\(z\)) difference of proportions (grouped) independence (\(\chi^2\)) |
Notes
- Most tests also display confidence intervals (estimates)
- If both boxes are filled, the menu also includes the appropriate tests under “nothing on the right.”
- A test of proportions uses exact binomial if \((np ≤ 10)\) or \((n(1-p) ≤ 10)\), that is, if either the number of successes or the number of failures is 10 or less.
- A test for correlation can test only if the correlation is zero.