If the Population Mean Is Assumed to Be 20 and the Sample

question 25

Multiple Choice

If the population mean is assumed to be 20 and the sample standard deviation is 5,a score of 15 would have a Z-value of approximately:

• A)+1.00
• B)-7.00
• C)-1.00
• D)+5.00

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Definitions:

Scope

The extent or range of view, reach, application, effectiveness, or influence of an object, discussion, or analysis.

Range

The difference between the highest and lowest values in a set of numbers, indicating the spread or dispersion.

Theory

A system of ideas intended to explain something, based on general principles independent of the thing to be explained, often tested and grounded in evidence.

Interventions

Actions or processes intervening in a particular situation, often aimed at helping improve or alleviate a problem.