Find the Margin of Error

question 8

Multiple Choice

Find the margin of error.
-Grandma Gertrude's Chocolates, a family owned business, has an opportunity to
Supply its product for distribution through a large coffee house chain. However, the
Coffee house chain has certain specifications regarding cacao content as it wishes to
Advertise the health benefits (antioxidants) of the chocolate products it sells. In order to
Determine the mean % cacao in its dark chocolate products, quality inspectors sample 36
Pieces. They find a sample mean of 55% with a standard deviation of 4%.
What is the margin of error at 95% confidence?

• A) 1.13%
• B) 1.36%
• C) 0.67%
• D) 4%
• E) 1.67%

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Definitions:

Epistasis

An interaction between genes where the presence or absence of alleles of one gene influences the expression of another gene.

Alleles

Alleles are alternative forms of a gene that arise by mutation and are found at the same place on a chromosome, contributing to genetic variation in populations.

Locus

A precise, definite location on a chromosome that is the site of a specific gene or genetic marker.

Dominant Traits

Genetic characteristics that are expressed in an organism's phenotype even when only one copy of the gene responsible for the trait is present.