True or False: the Width of a Confidence Interval Estimate

question 111

Multiple Choice

True or False: The width of a confidence interval estimate for a proportion will be

• A)narrower for 99% confidence than for 95% confidence.
• B)wider for a sample size of 100 than for a sample size of 50.
• C)narrower for 90% confidence than for 95% confidence.
• D)narrower when the sample proportion is 0.50 than when the sample proportion is 0.20.

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Definitions:

Medial

A term denoting a position closer to the midline of the body or a structure.

Retractable Penis

A characteristic of certain animals where the penis can be withdrawn into the body when not in use.

External Urogenital Orifice

The external opening of the urinary tract and, in females, the reproductive tract, which can be part of the vulva in females or the urogenital opening in males.

Urogenital Sinus

A part of the embryonic development of mammals that gives rise to parts of the urinary and genital tracts.