Statitsics and SAS Programming course

Question: Compute the chi-square value for the relationship between the occurrence of leukemia and exposure to non-ionizing radiation for the data in problem 3.6.

Please give me the sas codes where it requires it! thank you very much :)

3.6 A case-control study relating leukemia to exposure to non-ionizing radiation resulted in the following: In the cases (those with leukemia), there were 50 exposed and 500 non-ex- posed; for the controls, there were 40 exposed and 500 non-exposed. Write the necessary SAS statements to compute the odds ratio for non-ionizing radiation exposure. Make sure you have your first column for cases and the first row for those exposed. What is the 95% CI for the odds ratio and what does this imply