Find the Standardized Test Statistic to Test the Hypothesis That $\mu _ { 1 } = \mu _ { 2 }$

question 49

Multiple Choice

Find the standardized test statistic to test the hypothesis that $\mu _ { 1 } = \mu _ { 2 }$ . Two samples are randomly selected from each population. The sample statistics are given below. Use $\alpha = 0.05$ .
$$\begin{array} { l l } \mathrm { n } _ { 1 } = 50 & \mathrm { n } _ { 2 } = 60 \\\overline { \mathrm { x } } 1 = 21 & \overline { \mathrm { x } _ { 2 } } = 19 \\\mathrm {~s} 1 = 1.5 & \mathrm {~s} _ { 2 } = 1.9\end{array}$$

• A) 6.2
• B) 8.1
• C) 4.2
• D) 3.8

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Definitions:

Dual-route Theories

Theories proposing that there are two distinct pathways in the brain for processing information, often contrasting automatic with controlled processes.

Internal Needs

Fundamental psychological or physiological necessities that drive behavior and must be met for an individual to achieve well-being.

Growth Needs

Psychological needs that drive an individual to seek out new challenges, personal development, and opportunities for growth.

Maslow's Theory

A psychological theory proposing a hierarchy of human needs, from basic physiological needs to self-actualization.