The Following Samples Were Selected by Two Researchers $\mu$ = 12 $\sigma$

question 30

Multiple Choice

The following samples were selected by two researchers.Which is associated with a smaller standard error of the mean?
Researcher A: n = 36, $\mu$ = 12, $\sigma$ = 9
Researcher B: n = 36, $\mu$ = 12, $\sigma$ = 6

• A) Researcher A.
• B) Researcher B.
• C) They both have the same standard error.

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Definitions:

Gas Bubbles

Cavities filled with gas trapped within a solid material, often found in cooling lava.

Magma Rise

The upward movement of molten rock or magma from the Earth's mantle towards the crust, often leading to volcanic activity.

Pressure Decreases

A phenomenon where the force exerted by a fluid per unit area decreases, commonly observed with increasing altitude in the atmosphere.

Uplifted

The process of raising a part of the earth’s crust by tectonic forces, leading to the formation of mountains and plateaus.