Using the data given in the following, test the hypothesis that the error variances in the two subperiods 1958€“IV to 1966€“III and 1966€“IV to 1971€“II are the same.

Job ployment Vacancy Rate UN, Rate V, Unem- Job ployment Vacancy Rate UN, Rate V, Unem- Year Year and and Quarter D DV Quarter DV % 1965 1958IV 0.997 1.915 0.510 1.201 -I| 1.192 1.035 1959I 1.876 0.541 1.040 -II 1.259 1.842 0.541 -IV 1.192 1.086 -HII 1.750 0.690 -IV 1.648 0.771 1966I 1.089 1.101 1.058 -|| 1.101 0.836 1960I 1.450 -II 1.243 0.987 1.393 0.908 -IV 1.623 0.819 0.819 -II 1.322 1.260 0.968 -IV 0.998 1967- 1.821 0.740 0.740 -II 1.990 0.661 0.661 1961- 1.171 0.968 -II 2.114 0.660 0.660 0.698 0.964 1.182 -IV 2.115 0.698 -II 1.221 0.952 1.340 -IV 0.849 1968 2.150 0.695 0.695 -|| 2.141 0.732 0.732 1962I 1.411 0.748 -II 2.167 0.749 0.749 1.600 0.658 -IV 2.107 0.800 0.800 -II 1.780 0.562 1969I -IV 1.941 0.510 2.104 0.783 0.783 -|| 2.056 0.800 0.800 1963I 2.178 0.510 -II 2.170 0.794 0.794 2.067 0.544 -IV 2.161 0.790 0.790 1.942 0.568 1970 -IV 1.764 0.677 2.225 0.757 0.757 0.746 -I| 2.241 0.746 1964I 1.532 0.794 -II 2.366 0.739 0.739 1.455 0.838 0.707 -IV 2.324 0.707 1 1.409 0.885 1971- 2.516* 0.583* -IV 1.296 0.978 0.583* 1 0.524* -|I 2.909* 0.524*