Test the Hypothesis That $\sigma _ { 1 } > \sigma _ { 2 } \text { at the } \alpha = 0.01$

question 123

Multiple Choice

Test the hypothesis that $\sigma _ { 1 } > \sigma _ { 2 } \text { at the } \alpha = 0.01$ level of significance for the given sample data.
$\begin{array} { c | c c } & \text { Population 1 } & \text { Population 2 } \\\hline \mathrm { n } & 25 & 17 \\\mathrm {~s} & 5.23 & 2.5\end{array}$

• A) Test statistic: F=4.38 . Critical value: \mathrm{F}=3.18 . Reject H₀
• B) Test statistic: F=4.38 . Critical value: \mathrm{F}=3.18 . Do not reject H₀
• C) Test statistic: F=2.09 . Critical value =1.87 . Reject H₀
• D) Test statistic: F=2.09 . Critical value =3.18 . Do not reject H₀

Explain the impact of motivation and needs (e.g., the need for closure, accuracy, and confirmation of beliefs) on social cognition.

Differentiate between implicit and explicit processes in shaping attitudes and behaviors.

Understand the concept of heuristics and their role in decision-making.

Grasp the significance of nonconscious processes in social cognition.

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