Find the Critical Value $z _ { \alpha / 2 }$

question 42

Multiple Choice

Find the critical value $z _ { \alpha / 2 }$ needed to construct a(n) 99.5% confidence interval.

• A) 2.81
• B) 2.53
• C) 3.71
• D) 2.58

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Definitions:

Self-Serving Bias

The common tendency to attribute one's successes to personal characteristics and failures to external factors.

Mere-Exposure Effect

A psychological phenomenon by which people tend to develop a preference for things simply because they are familiar with them.

External Attribution

The process of attributing one's own behavior or the behavior of others to external factors or situations.

Altruism

Behavior that is aimed at helping another, requires some self-sacrifice, and is not performed for personal gain.