Test Hypotheses About a Population Proportion
-Compute the Standardized Test $\chi ^ { 2 }$

question 45

Multiple Choice

Test Hypotheses about a Population Proportion
-Compute the standardized test statistic, $\chi ^ { 2 }$ , to test the claim $\sigma ^ { 2 } \leq 9.6$ if $\mathrm { n } = 20 , \mathrm {~s} ^ { 2 } = 18.6$ , and $\alpha = 0.01$ .

• A) \(36.813\)
• B) \(9.322\)
• C) \(12.82\)
• D) \(33.41\)

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Definitions:

Hindsight Bias

The tendency to believe, after an event has occurred, that one would have predicted or expected the outcome, often referred to as the "I-knew-it-all-along" phenomenon.

Self-fulfilling Prophesy

A prediction that directly or indirectly causes itself to become true, by the very terms of the prophecy itself, due to positive feedback between belief and behavior.

Rationalization

A defense mechanism where logical, acceptable explanations are given for behaviors that are actually driven by subconscious motives.

Thematic Apperception Test

A projective psychological test that asks respondents to tell stories about ambiguous pictures, aimed at uncovering their underlying thoughts, feelings, and attitudes.