Refer to the data on 500 patients who have sought treatment for the relief of respiratory disease symptoms (RESPDIS). A medical research team is conducting a study to determine what factors may be related to respiratory disease. The dependent variable Y is a measure of the severity of the disease.

A larger value indicates a more serious condition. The independent variables are as follows:

measure of air quality at place of residence (a larger number indicates poorer quality)

Select a simple random sample of subjects from this population and conduct a statistical analysis that you think would be of value to the research team. Prepare a narrative report of your results and conclusions. Use graphic illustrations where appropriate. Compare your results with those of your classmates. Consult your instructor regarding the size of sample you should select.