A Research Project Examining Cholesterol Values Using a New Cholestcheck

question 15

Multiple Choice

A research project examining cholesterol values using a new Cholestcheck assay produces the following cholesterol values from a random sample of 14,25-year-old women: Mean = 137 mg/dL
2 standard deviations = 6 mg/dL
N = 14
The coefficient of variation percent for this assay is:

• A) 1.14%.
• B) 2.19%.
• C) 4.38%.
• D) 9.49%.

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Definitions:

Sample Means

are the average values calculated from a subset of a population.

Sum of Squares

A statistical measure used in various contexts, representing the sum of the squared differences between each observation and the overall mean.

F-test

A statistical test used to compare the variances of two populations and determine if they are equal.

Population Means

The average value of a characteristic in a population, representing the central tendency.