$\mathrm { s } _ { 1 } = 20.4 , \mathrm { n } _ { 1 } = 16 , \mathrm {~s} _ { 2 } = 21.9 , \mathrm { n } _ { 2 } = 13$

Multiple Choice

$\mathrm { s } _ { 1 } = 20.4 , \mathrm { n } _ { 1 } = 16 , \mathrm {~s} _ { 2 } = 21.9 , \mathrm { n } _ { 2 } = 13$ left-tailed test, $\alpha$
=0.10
Test the hypothesis that $\sigma _ { 1 } < \sigma _ { 2 } \text { at the } \alpha = 0.10$ level of significance for the given sample data.
$\begin{array} { c | c c } & \text { Population 1 } & \text { Population 2 } \\\hline \mathrm { n } & 16 & 13 \\\mathrm {~s} & 20.4 & 21.9\end{array}$

A) Test statistic: F=0.87 . Critical value =0.495 . Do not reject H₀
B) Test statistic: F=0.87 . Critical value =0.476 . Do not reject H₀
C) Test statistic: F=0.87 . Critical value =0.495 . Reject H₀
D) Test statistic: F=0.87 . Critical value =0.476 . Reject H₀