COGNITIVE ASSESSMENT What Component Converts the AC Power in a Wall

question 179

Multiple Choice

COGNITIVE ASSESSMENT What component converts the AC power in a wall plug to the DC power required by a computer?

• A) electrical alternator
• B) power supply
• C) AC/DC flip-flop power switch
• D) power surge and adaptation coordinator

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Definitions:

Hypotheses

A formulated assumption made based on limited evidence as a starting point for further investigation.

Alpha

In statistics, it often refers to the level of significance at which a hypothesis test is conducted; commonly set at 0.05.

T-statistic

A type of statistic used in hypothesis testing to determine if there is a significant difference between two groups.

Null

Usually referring to the null hypothesis, it's a statement suggesting no significant effect or difference in a clinical or experimental study.