Yes, it can be done. It sounds ilke you are supposed to compute the test statistic and then estimate the p-value by using a Monte Carlo simulation from the chi-square distribution with 3 DoF. Here are some hints: Read "How to compute p-values" to learn how to estimate a p-value when you have a test statistic and N values from the  simulated chi-square distribution The blog at https://blogs.sas.com/content/iml has many simulation articles. If you go to your favorite search engine and type keywords site:https://blogs.sas.com/content/iml   then your search is restricted to only that site. Here's what you should do: A. Figure out how to calculate the H-L statistic for your data. THis is the "test statistic." B. You've already generated N random observations from chi-square(3) distribution.  C. Use the formula in the "How to compute p-values..." article to estimate the p-value for your test statistic.   Good luck. ... View more