A Statistics Professor Asked Her Students Whether or Not They $\pm 4 \%$

question 37

Essay

A statistics professor asked her students whether or not they were registered to vote. In a sample of 50 of her students
(randomly sampled from her 700 students), 35 said they were registered to vote.
-If the professor only knew the information from the September 2004 Gallup poll and
wanted to estimate the percentage of her students who were registered to vote to within $\pm 4 \%$
th 95% confidence, how many students should she sample?

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Definitions:

Weight Loss

The process or act of reducing body weight, typically by burning more calories through activity than are consumed through eating.

Absolute Threshold

The minimum intensity of a stimulus that one can detect 50% of the time.

Subliminal

Below one’s absolute threshold for conscious awareness.

Adaptive

Describing an organism or system that can adjust to changes in its environment or circumstances.