Can you run Mac OS 9 on Mac OS X using Boot camp?

The Boot Camp utility assists in setting up a Mac so that Windows can be installed. It will not run Mac OS 9.

Boot Camp assistant lets you boot into Boot Camp which is a Windows type program to be able to install and use a Windows Operating System. Boot Camp installs Apple drivers and is basically the translator for Apples hardware like the keyboard, mouse, Airport, etc.

OS 9 being a Mac OS, as old as it is, can't speak Windows. The new Mac OS was re-written to be able to use the same type Intel chip that Windows uses.