A professor wants to compare the variances of scores between two sections of c esses The students in each section took the same test The random samples 16, respectively. which of the following is a 99% confidence interval for the ratio ofthe population variances? eld sample variances of 20315 end -474 42 for samples of n1-13 and n2- a. [01540, 27809] b. [01386, 30895] c. [0.0907, 1.8198]
d. [01008, 20217]
