When Performing a Hypothesis Test for the Ratio of Two $F _ { R }$

Multiple Choice

When performing a hypothesis test for the ratio of two population variances, the upper critical F value is denoted $F _ { R }$ The lower critical F value, $F _ { L }$ can be found as follows: interchange the degrees of freedom, and then take the reciprocal of the resulting F value found in Table A-5. $F _ { R }$ can be denoted $F _ { \alpha / 2 } \text { and } F _ { L }$
can be denoted $F _ { 1 - \alpha / 2 }$
Find the critical values $F _ { L } \text { and } F _ { R }$
for a two-tailed hypothesis test based on the following values: n₁=9, n₂ -7 , $\alpha = 0.05$

A) 0.2150,5.5996
B) 0.2150,4.8232
C) 0.3931,4.1468
D) 0.2411,4.1468