A Random Sample of 20 Items Is Selected from a Population

question 62

Multiple Choice

A random sample of 20 items is selected from a population. To determine the appropriate critical t-value what number of degrees of freedom should be used?

• A) 20
• B) 19
• C) 21
• D) 25

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Definitions:

Training Design

The planned, systematic layout and structure of a training program, including objectives, delivery methods, materials, and assessment tools.

Modality Principle

A guideline in multimedia learning that suggests people learn better from words and pictures when the words are spoken rather than presented in text form.

Audio Technology

The use and application of equipment and software for recording, reproducing, and manipulating sound.

On-screen Text

Text displayed on a computer or television screen used for conveying information or instructions.