Hi! Can you help me with the following question?

For the following question, using the following information: You are investigating whether the population variance of returns on the Vanguard 500 Value Fund has changed subsequent to a restructuring of the fund that occurred in 2012. You have gathered monthly returns and variance data for the five years before the restructuring and the five years after the restructuring and that information is contained in the following table:

Formulate the null and alternative hypothesis for your test. Show your work.