Respuesta :
Answer:
Its answer A !!!! Whoever said C was wrong.
Step-by-step explanation:
An F-test (Snedecor and Cochran, 1983) is used to test if the variances of two populations are equal. This test can be a two-tailed test or a one-tailed test. The two-tailed version tests against the alternative that the variances are not equal.