A suggestion is to use a wide variety of samples greater than this because if you use the sample is too small. Information is staggering, and the outcome will not be taken to refer to the other people.
Suggestions should be more diverse samples. If the sample is too small. Information will be inaccurate. And the results will not be based on a population basis.
Suggestions should use the more variety. If the sample is too low. The data can be errors. And the results will not lead to other reference population.