Numerical:
Two random samples have been drawn for the normal population as follows. I 20 16 26 27 23 22 18 24 25 19 20 II 17 23 32 25 22 24 28 18 31 33 27 Test whether the two populations have the same variance. Given; 20 17 400 289 16 23 256 529 26 32 676 1024 27 25 729 625 23 22 529 484 22 24 484 576 18 28 324 784 24 18 576 324 25 31 625 961 19 33 361 1089 20 27 400 729 ...