(Solved): Find the mass moment of inertia, Izz, for the spherical ceramic femoral head ball (with a cylindri ...

Find the mass moment of inertia, $Izz$, for the spherical ceramic femoral head ball (with a cylindrical hole) from a total hip replacement. Assume that $r=3.2\mathrm{cm}$, and density is a uniform $3.5\mathrm{g}/{\mathrm{cm}}^3$. (Recall that reasonable approximations around the intersection of round and flat objects are acceptable; select a simple approximation).