Question

4. A team of economists were studying the impact of the economic downturn for a specific period of years. They initially anticipated the variables of the return on equity (ROE) for the randomly selected public listed companies' annual reports. 10 companies were selected and their ROE for the respective year (before crisis and after crisis) were shown as follows:- Companies Return on Equities (ROE) After crisis 0.766 Before crisis Cl 0.596 C2 0.302 0.479 0.255 0.497 C3 0.166 0.479 C4 0.125 0.529 C5 0.001 -0.136 0.198 0.509 C6 C7 0.922 0.473 C8 C9 0.68 0.025 0.971 C10 0.845 Conduct a suitable test to observe whether there is a change in ROE before and after crises