Find the Margin of Error $75.67 < \mu < 80.33$ B) $74.63 < \mu < 81.37$

question 2

Multiple Choice

Find the margin of error.
-Thirty randomly selected students took the calculus final. If the sample mean was 78 and the standard deviation was 7.5, construct a 99 percent confidence interval for the mean score of all students.

• A) \(75.67 < \mu < 80.33\)
• B) \(74.63 < \mu < 81.37\)
• C) \(74.23 < \mu < 81.77\)
• D) \(74.24 < \mu < 81.76\)

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Definitions:

Social Movements

Collective, organized campaigns aimed at achieving a particular social, political, economic, or cultural goal, often outside of institutionalized political channels.

Marginal

Positioned at the fringe or edge, often referring to groups or individuals that are considered outside the mainstream of society or economically and socially disadvantaged.

Socially Engaged

Active participation in community or societal issues and efforts to promote social change.

Cultural Lag

A theory suggesting that culture takes time to catch up with technological innovations, leading to social problems.