Disco Fever Is Randomly Found in One Half of One

question 100

Multiple Choice

Disco Fever is randomly found in one half of one percent of the general population.Testing a swatch of clothing for the presence of polyester is 99% effective in detecting the presence of this disease.The test also yields a false-positive in 4% of the cases where the disease is not present.What is the probability that the disease is not present if the test result is positive?

• A)0.8894
• B)0.9900
• C)0.9500
• D)0.9763

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Definitions:

Direction of Cause and Effect

Pertains to determining which variable influences the other in a cause-and-effect relationship.

Experimental Methods

Research designs involving the manipulation of variables to determine cause-and-effect relationships.

Nonexperimental Methods

Research designs that do not involve the manipulation of variables or random assignment of participants.

Randomization

Controlling for the effects of extraneous variables by ensuring that the variables operate in a manner determined entirely by chance.