Test the Hypothesis That $\sigma _ { 1 } \neq \sigma _ { 2 } \text { at the } \alpha = 0.05$

question 117

Multiple Choice

Test the hypothesis that $\sigma _ { 1 } \neq \sigma _ { 2 } \text { at the } \alpha = 0.05$ level of significance for the given sample data.
$\begin{array} { c | c c } & \text { Population 1 } & \text { Population 2 } \\\hline \mathrm { n } & 16 & 13 \\\mathrm {~s} & 20.7 & 22.9\end{array}$

• A) T́est statistic: F=0.82 . Critical values =0.338,3.18 . Do not reject H₀
• B) Test statistic: F=0.82 . Critical values =0.314,3.18 . Do not reject H₀
• C) Test statistic: F=0.82 . Critical values =0.338,3.18 . Reject H₀
• D) Test statistic: F=0.82 . Critical values =0.403,2.62 . Reject H₀ .

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