A Study Published in the American Journal of Public Health

question 12

Multiple Choice

A study published in the American Journal of Public Health was conducted to determine whether the use of seat belts in motor vehicles depends on ethnic status in San Diego County.A sample of 792 children treated for injuries sustained from motor vehicle accidents was obtained,and each child was classified according to (1) ethnic status (Hispanic or non-Hispanic) and (2) seat belt usage (worn or not worn) during the accident.The number of children in each category is given in the table below. Referring to these data,the calculated test statistic is:

• A)approximately -0.9991.
• B)nearly -0.1368.
• C)about 48.1849.
• D)approximately 72.8063.

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Definitions:

DNA Polymerase

An enzyme that plays a critical role in DNA replication, facilitating the synthesis of a new strand of DNA by adding nucleotides matched to the template strand.

Adds Nucleotides

A process that involves the addition of nucleotide units to a nucleic acid molecule such as DNA or RNA.

Diploid

A cell or organism that has two sets of chromosomes, one from each parent, typical of somatic cells.

Chromosome Type

Refers to the classification of chromosomes based on structure and function within a cell, important for genetic inheritance.