A Study Determines That the Mean Blood Cholesterol Level Is

question 5

Multiple Choice

A study determines that the mean blood cholesterol level is 195 mg/dL in 200 non-diabetic hospitalized patients and 210 mg/dL in 180 diabetic hospitalized patients.  The probability that the observed difference is due to chance alone is reported to be 5%.  There is also a 20% probability of concluding that there is no difference in blood cholesterol level when there is one in reality.  What is the power of the study?

• A)0.05
• B)0.20
• C)0.50
• D)0.80
• E)0.95

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Definitions:

Premise

A foundational statement or principle from which a conclusion is logically derived.

EI

This is an abbreviation for Existential Import, which suggests that for a proposition to be true, the entities mentioned in it must actually exist.

DM

Direct Message; a private form of communication between social media users.

Justification

The action of showing something to be right or reasonable, providing support or evidence for beliefs or actions.