Given the Variances of the Two Samples Below, Find the Test

question 37

Multiple Choice

Given the variances of the two samples below, find the test value and the degrees of freedom that should be used in an $F$ test.
$\begin{array}{l|cc} & \text { Sample 1 } & \text { Sample 2 } \\\hline \text { Variance } & 7 & 11 \\\text { Sample size } & 14 & 26\end{array}$

• A) test value = 1.25; d.f.N. = 26 and d.f.D. = 14
• B) test value = 0.64; d.f.N. = 25 and d.f.D. = 13
• C) test value = 2.47; d.f.N. = 26 and d.f.D. = 14
• D) test value = 1.57; d.f.N. = 25 and d.f.D. = 13

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