What Is Z_α/2 for a 90% Confidence Interval of the Population

question 95

Multiple Choice

What is z_α/2 for a 90% confidence interval of the population mean?

• A) 0.48
• B) 0.49
• C) 1.645
• D) 1.96

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Definitions:

Framing Effect

The cognitive bias where people's decisions are influenced by the way information is presented, rather than just the information itself.

Representativeness Heuristic

A cognitive shortcut that involves making judgments based on how well something matches or represents a particular prototype.

Overconfidence

The tendency to be more confident in one's own abilities or outcomes than is objectively justified.

Availability Heuristic

A mental shortcut that relies on immediate examples that come to a person’s mind when evaluating a specific topic, concept, method, or decision.