In Comparing the Two Standard Deviations Below, What Test Value $F$

question 82

Multiple Choice

In comparing the two standard deviations below, what test value and degrees of freedom should be used in an $F$ test?
$\begin{array}{l|cc} & \text { Sample 1 } & \text { Sample 2 } \\\hline \text { Standard deviation } & 7 & 3 \\\text { Sample size } & 14 & 23\end{array}$

• A) test value = 2.33; d.f.N. = 14 and d.f.D. = 23
• B) test value = 2.33; d.f.N. = 22 and d.f.D. = 13
• C) test value = 5.44; d.f.N. = 13 and d.f.D. = 22
• D) test value = 5.44; d.f.N. = 23 and d.f.D. = 14

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Definitions:

Convergent Boundary

A plate-tectonic boundary in which two plates move toward (converge) relative to one another.

Continental Collision

A tectonic process where two continental plates converge, often resulting in mountain building due to the compression and uplift of land masses.

Ocean-Continent

Describes the boundary or interaction between oceanic and continental tectonic plates, typically resulting in geological features like volcanic arcs or mountain ranges.

Volcanoes

Openings in the Earth's surface from which lava, ash, and gases erupt.