Quasars Were First Discovered in Which Region of the Electromagnetic

question 84

Multiple Choice

Quasars were first discovered in which region of the electromagnetic spectrum?

• A) X-ray
• B) gamma-ray
• C) radio
• D) infrared
• E) visible

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Definitions:

T-test

A technique in statistics for comparing the means of two groups to see if they differ in a statistically significant way.

Alpha

Often referred to as the level of significance in hypothesis testing, it represents the threshold at which the null hypothesis is rejected.

T-test

A statistical test used to compare the mean of two groups to see if there is a significant difference between them.

Null Hypothesis

The hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.