Hi,

I need help understanding how to get the answer to this question. I understand the F test statistic, but I can't figure our how to apply it to this question. I know the answer is B, I just don't know how to get to it.

The use of preservatives by food processors has become a controversial issue. Suppose 2 preservatives are extensively tested and determined safe for use in meats. A processor wants to compare the preservatives for their effects on retarding spoilage. Suppose 15 cuts of fresh meat are treated with preservative A and 15 are treated with preservative B, and the number of hours until spoilage begins is recorded for each of the 30 cuts of meat. The results are summarized in the table below.

Preservative APreservative B

_A = 106.4 hours_B = 96.54 hours

S _A = 10.3 hours S _B = 13.4 hours

1. Referring to Table 10-3, state the test statistic for determining if the population variances differ for preservatives A and B.

a)F = - 3.10

b)F = 0.5908

c)F = 0.7687

d)F = 0.8250

This is all of the information I was provided.... are you telling me, it can't be answered?