When Solving for the Sample Size Needed to Compute a 95

question 53

Multiple Choice

When solving for the sample size needed to compute a 95 percent confidence interval for a population proportion p,having a given error bound E,we choose a value of that

• A) makes As small as reasonably possible.
• B) makes As large as reasonably possible.
• C) makes As close to .5 as reasonably possible.
• D) makes As close to .25 as reasonably possible.
• E) makes

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Definitions:

Norm Group

A representative sample of the population by which test scores are interpreted and compared.

Normally Distributed Curve

A graphical representation of a distribution of data in which most values cluster around a central peak and taper off symmetrically towards either end, resembling a bell shape.

Standard Deviation

Standard deviation is a statistical measure that quantifies the amount of variation or dispersion of a set of data values from the mean.

Stanine

A method of scaling test scores on a nine-point standard scale, where a higher stanine score indicates better performance.