People with High Cholesterol Levels Often Take Drugs in an Attempt

question 71

Multiple Choice

People with high cholesterol levels often take drugs in an attempt to lower their cholesterol levels.One such drug is Lipitor.How does this drug work?

• A)It enhances the activity of enzymes that help break down cholesterol in the body.
• B)It prevents cholesterol from the diet from being absorbed in the small intestine.
• C)It acts as a competitive inhibitor by binding to the active site of enzymes that normally produce cholesterol.
• D)It increases the activation energy of enzymes needed to produce cholesterol.

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Definitions:

Z-test

A statistical test used to determine if there is a significant difference between sample and population means.

Level of Significance

A threshold of probability set by the researcher to determine the cutoff at which an observed result is considered statistically significant.

Degrees of Freedom

A concept in statistics that represents the number of independent values or quantities that can vary in the calculation of a statistic.

T-statistic

A type of statistic used in hypothesis testing, derived from the t-distribution to compare two means or test a correlation.