What Is the Approximate Width of an 80 Percent Confidence

question 45

Multiple Choice

What is the approximate width of an 80 percent confidence interval for the true population proportion if there are 12 successes in a sample of 80?

• A)± .078
• B)± .066
• C)± .051
• D)± .094

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Definitions:

Thalamus

A structure within the brain that acts as a relay station, transmitting information between different areas of the brain.

Magnetic Resonance Imaging (MRI)

Brain-imaging method using radio waves and magnetic fields of the body to produce detailed images of the brain.

Radio Waves

Electromagnetic waves with wavelengths longer than infrared light, used in communication systems for broadcasting, radar, and satellite transmissions.

Magnetic Fields

Invisible fields that exert a force on objects that are magnetic in nature or moving electrical charges.