If people who work for someone else have more assets and greater net worth than self-employed people

Question:

If people who work for someone else have more assets and greater net worth than self-employed people (OCCAT1: 1 = someone else, 2 = self-employed/partnership) we would expect them to have larger unrealized capital gains (KGTOTAL). Conduct a test to determine whether there is enough evidence to support this expectation.