Two Independent Samples of Sizes 40 and 50 Are Randomly $\mu$

question 54

Multiple Choice

Two independent samples of sizes 40 and 50 are randomly selected from two normally distributed populations. Assume that the population variances are known. In order to test the difference between the population means, µ $\mu$ ₁ - µF $\mu$ ₂, which of the following test statistics should be used?

• A) t-test
• B) Chi-square test
• C) Z-test
• D) None of these choices are correct.

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Definitions:

Sensory Capacities

The maximum ability of the sensory system to detect, process, and respond to stimuli from the environment.

Sensory-Motor Skills

Skills involving the coordination of sensory inputs (like seeing or hearing) with motor actions, critical in childhood development for tasks like grasping and walking.

Physical Growth

The process by which a living organism increases in size and matures in physical characteristics.

Habituation

The psychological process through which an individual becomes accustomed to a stimulus and hence reacts less strongly over time.