What Type of Test for Population Means Should Be Performed

question 93

Multiple Choice

What type of test for population means should be performed when employees are first tested, trained, and then retested?

• A) A z test under independent sampling with known population variances.
• B) A t test under independent sampling with unknown but equal population variances.
• C) A t test under dependent sampling.
• D) A t test under independent sampling with unknown and unequal population variances.

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Definitions:

Technological Applications

Refers to the use of technology in various fields to solve problems or enhance processes.

Population-Based Treatments

Health interventions designed for and applied to entire populations rather than tailored to individual patients.

Neuroscience

The scientific study of the nervous system, including the brain and spinal cord, aiming to understand the biological basis of behavior, thought, and emotion.

Industrialization

The process of developing industries in a country or region on a wide scale, transitioning from an agrarian to an industrial base.