33 Selecting a test

Selecting the correct hypothesis test (or confidence interval) can be tricky... and in this book only a small number of hypothesis tests were described. (Literally hundreds of tests exist.)512

For the tests studied in this book, determining if the response and explanatory variables are qualitative or quantitative is important (Table 33.1).

So far, only situations with a qualitative explanatory variable have been considered. In the next chapters, cases where both the response and explanatory variables are quantitative are studied.

You might also find Appendix C useful.

The following short video may help explain some of these concepts. Note that the test for correlation and regression have not yet been covered in this book (but they will be in the next few chapters).