Assume That $\sigma _ { 1 } ^ { 2 } = \sigma _ { 2 } ^ { 2 } = \sigma ^ { 2 }$

question 61

Essay

Assume that $\sigma _ { 1 } ^ { 2 } = \sigma _ { 2 } ^ { 2 } = \sigma ^ { 2 }$ . Calculate the pooled estimator of $\sigma ^ { 2 }$ for $s _ { 1 } ^ { 2 } = 50$ , $s _ { 2 } ^ { 2 } = 57$ , and $n _ { 1 } = n _ { 2 } = 18$ .

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Definitions:

Implicit Attitudes

Unconscious beliefs or feelings towards objects, people, or situations, which can influence behavior without one's awareness.

Racial Prejudice

The preconceived opinion, bias, or discrimination against people based on their race or ethnicity.

Negative Views

Attitudes or perspectives that focus on the undesirable aspects of a situation rather than the positive ones.

Line Study

An investigation or experiment that focuses on the perception, judgment, or memory of lines, often in the context of psychological research.