One of the steps involved in the processing of corn flakes for cereals involves toasting the flakes. The accompanying table contains data for corn flakes thickness in millimeters for four different toasting times in seconds. Complete parts (a) through (d) below. Click here to view the data on corn flake thickness. Click here to view a partial table of critical values of the Studentized Range, Q. -X Corn Flake Thickness 20 sec 40 sec 60 sec 80 sec 1.4 1.6 1.8 1.2 I F. The 40 sec and 80 sec toasting times differ in mean thickness. 0.8 1.7 1.1 0.6 0.6 0.7 0.8 0.3 LY G. It is not appropriate to test which toasting times differ in mean thickness. c. At the 0.05 level of significance, is there evidence of a difference in the variation in the mean thickness o Determine the hypotheses. Choose the correct answer below. Print Done CA. Ho: 02 =07 =. . .=02 O B. H,: Not all of are equal (where j = 1,2,...,4) OC. Ho: 07 =02 2=. . .=03 OD. He: 07 =02 102=. . .=04 Perform a modified Levene (or Brown-Forsythe) test for homogeneity of variance. Find the test statistic. FSTAT= (Type an integer or decimal rounded to two decimal places as needed.)