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Test the Hypothesis That σ1>σ2 at the α=0.01\sigma _ { 1 } > \sigma _ { 2 } \text { at the } \alpha = 0.01

Question 123

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Test the hypothesis that σ1>σ2 at the α=0.01\sigma _ { 1 } > \sigma _ { 2 } \text { at the } \alpha = 0.01 level of significance for the given sample data.
 Population 1  Population 2 n2517 s5.232.5\begin{array} { c | c c } & \text { Population 1 } & \text { Population 2 } \\\hline \mathrm { n } & 25 & 17 \\\mathrm {~s} & 5.23 & 2.5\end{array}


A) Test statistic: F=4.38 . Critical value: \mathrm{F}=3.18 . Reject H0
B) Test statistic: F=4.38 . Critical value: \mathrm{F}=3.18 . Do not reject H0
C) Test statistic: F=2.09 . Critical value =1.87 . Reject H0
D) Test statistic: F=2.09 . Critical value =3.18 . Do not reject H0

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