Suppose we have two normal populations denoted A and B, and we want to compare their population variances by estimating the ratio: variance of population B divided by variance of population A.We have an independent random sample of size 15 from population A and an independent random sample of size 9 from population B.The sample variance for population B turns out to be 30 percent larger than that for population A.What is the 95 percent confidence interval for the ratio:population variance of population B divided by population variance of population A?

Group of answer choices

.273 to 8.931

.195 to 6.318

.390 to 5.369

.312 to 4.277

NONE OF THE OTHERS