To say that the t procedures are robust means that we can still conduct inference in certain situations even if one of our conditions for inference is violated. Specifically, we can still proceed with inference even if the population is not .

meeting some of the assumptions of the required analysis.

Explanation:

In a statistical test, the apparatus of robust states that hypothetical tests can equitably produce precise results even where there are certain violations in the data.It states that certain inferences can be conducted without meeting the assumptions of the required analysis. It further postulates that inablilty to meet the assumptions does not mean that the research is entirely wrong.Specifically in the case of population, inference can be conducted even when some of the assumptions are not met.