An analysis of selected fission fragment angular distributions of various target is made using exact theoretical expressions. Theoretical anisotropies obtained from the transition state model are compared with their corresponding values deduced from the statistical scission model. The nuclear moment of inertia extracted from the model calculations are compared with their estimated values from a microscopic theory, which includes the nuclear pairing interactiont. Single particle levels of Nilsson et al. are utilized. It is found that the value of the statistical parameter, is very sensitive to the energy gap parameter, Δ. The reduction of energy gap results in an increase in the moment of inertia. The effect of pairing interaction on the inertia parameters are illustrated and discussed. An analysis of selected fission fragment angular distributions of various target is made using exact theoretical expressions. Theoretical anisotropies obtained from the transition state model are compared with their corresponding values ​​deduced from the statistical scission model. The nuclear moment of inertia extracted from the model calculations are. compared with their estimated values ​​from a microscopic theory, which includes the nuclear pairing interaction. Single particle levels of Nilsson et al. are utilized. It is found that the value of the statistical parameter, is very sensitive to the energy gap parameter, Δ. The reduction of energy gap results in an increase in the moment of inertia. The effect of pairing interaction on the inertia parameters are illustrated and discussed.