In a hypothesis test about two population variances, the test statistic F is computed as _____.
A) $\frac { 1 } { \frac { s _ { 1 } ^ { 2 } } { s _ { 2 } ^ { 2 } } }$
B) $\frac { s _ { 1 } ^ { 2 } } { s _ { 2 } ^ { 2 } }$
C) $\frac { 1 } { \frac { \sigma _ { 1 } ^ { 2 } } { \sigma _ { 2 } ^ { 2 } } }$
D) $\frac { \sigma _ { 1 } ^ { 2 } } { \sigma _ { 2 } ^ { 2 } }$

Question

Quizplus · Accepted Answer

The F statistic for testing two population variances is computed as the ratio of the two sample variances, $s_1^2 / s_2^2$, where $s_1^2$ is the variance of the first sample and $s_2^2$ is the variance of the second sample.

In a Hypothesis Test About Two Population Variances, the Test 1s12s22\frac { 1 } { \frac { s _ { 1 } ^ { 2 } } { s _ { 2 } ^ { 2 } } }s22​s12​​1​

In a Hypothesis Test About Two Population Variances, the Test $\frac { 1 } { \frac { s _ { 1 } ^ { 2 } } { s _ { 2 } ^ { 2 } } }$