What Is the Minimum Sample Size Required to Estimate a Population

question 14

Multiple Choice

What is the minimum sample size required to estimate a population mean with 90% confidence when the desired margin of error is D = 1.25? The standard deviation in a preselected sample is 8.5.

• A) n = 76
• B) n = 125
• C) n = 126
• D) n = 190

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Definitions:

Delinquent Behavior

Actions that go against societal norms or laws, often used in reference to actions committed by minors that are disruptive or criminal.

Truancy

The act of staying away from school without permission, often seen as a behavioral issue needing intervention.

Antisocial Behavior

Actions that harm or lack consideration for the well-being of others, often violating social norms or laws.

Criminal Behaviors

Actions that violate laws, for which responsible parties may be subjected to criminal sanctions.