A Population Mean Is to Be Estimated from the Sample

question 2

Multiple Choice

A population mean is to be estimated from the sample described. Round your answer to one decimal place if necessary. Assume that all confidence intervals use a 95% confidence level.
-Sample size = 256, sample mean = 45, sample standard deviation = 17 What is the margin of error?

• A)1.1
• B)0.1
• C)5.6
• D)2.1

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Definitions:

Elite Theorists

Scholars who focus on the role and influence of small, powerful groups or individuals in society and politics.

High Status Groups

Social groups regarded as having superior prestige, authority, or wealth in a given society.

Power Concentration

The scenario in which a disproportionate amount of power or authority is held by a small number of individuals or organizations.

Elite Theory

Holds that small groups occupying the command posts of America’s most influential institutions make the important decisions that profoundly affect all members of society. Moreover, they do so without much regard for elections or public opinion.