The Following Samples Were Selected by Two Researchers $\mu$ = 5 $\sigma$

question 64

Multiple Choice

The following samples were selected by two researchers.Which is associated with a smaller standard error of the mean?
Researcher A: n = 25, $\mu$ = 5, $\sigma$ = 7.
Researcher B: n = 25, $\mu$ = 32, $\sigma$ = 7.

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

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Definitions:

Hair

A thin strand of keratin that grows from the skin of mammals.

Shared Homologous Structures

Anatomical features that are similar in different species due to shared ancestry, indicating evolutionary relationships.

Taxa

Groups of one or more populations of organisms classified together, representing categories used in biological taxonomy such as species, genus, or family.

Monophyletic

Pertaining to a group of organisms that consists of all the descendants of a common ancestor.