Determine the critical value(s) for a lower tailed test (left tail test) for a = 0. 09 with x , = 22, nj = 16 , 61 = 6.5 and x , = 24 , 01 = 20, 02 = 7.5 for two population means problem. None of these options 1.3689 O-1.3408 O-1.3689 1.3408 1.9202