Two Independent Sets of Data Are Collected, the First with 16

question 19

Multiple Choice

Two independent sets of data are collected, the first with 16 subjects and the second with 26 subjects. Mr. X is a subject in the first data set and is associated with a value of 80. In the first set, 3 values are ranked behind 80 and 12 values are ranked ahead of it (with Mr. X being the other data value) . In the second set, 10 values are ranked behind 80 and 16 values are ranked ahead of it. What is Mr. X's rank in a Wilcoxon rank sum test?

• A) 12
• B) 13
• C) 28
• D) 29

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Definitions:

Molecular Phylogenetics

A branch of phylogenetics that analyzes genetic, hereditary molecular differences, principally in DNA sequences, to gain information on an organism's evolutionary relationships.

Extinct Species

Species that no longer exist, with no living individuals left anywhere on Earth.

DNA Sequences

DNA sequences are the specific arrangements of nucleotides (adenine, thymine, cytosine, and guanine) on a strand of DNA that encode the genetic information of an organism.

Gene Flow

Describes the movement, or migration, of alleles from one population to another.