Perform a modified Levene (or Brown-Forsythe) test for homogeneity of variance. Find the test statistic. FSTAT 1.64 (Round to two decimal places as needed.) Region 1 2 3 4 60 50 68 46 58 45 45 44 51 40 37 43 50 40 39 41 47 38 36 36 47 37 33 35 46 39 31 29 44 40 30 42 45 36 22 29 43 38 28 222 26 23